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420162960 = 243571913163
BaseRepresentation
bin11001000010110…
…010110110010000
31002021121111020010
4121002302312100
51330030203320
6105405314520
713261216620
oct3102626620
91067544203
10420162960
111a6197718
12b8865a40
1369080c49
143db32880
1526d47ae0
hex190b2d90

420162960 has 160 divisors (see below), whose sum is σ = 1567042560. Its totient is φ = 90975744.

The previous prime is 420162947. The next prime is 420162983. The reversal of 420162960 is 69261024.

420162960 = T31 + T32 + ... + T1360.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25339 + ... + 38501.

It is an arithmetic number, because the mean of its divisors is an integer number (9794016).

Almost surely, 2420162960 is an apocalyptic number.

420162960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420162960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783521280).

420162960 is an abundant number, since it is smaller than the sum of its proper divisors (1146879600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420162960 is a wasteful number, since it uses less digits than its factorization.

420162960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13205 (or 13199 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 420162960 is about 20497.8769632369. The cubic root of 420162960 is about 748.9840822807.

It can be divided in two parts, 4201 and 62960, that added together give a triangular number (67161 = T366).

The spelling of 420162960 in words is "four hundred twenty million, one hundred sixty-two thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 28 30 35 38 40 42 48 56 57 60 70 76 80 84 95 105 112 114 120 133 140 152 168 190 210 228 240 266 280 285 304 336 380 399 420 456 532 560 570 665 760 798 840 912 1064 1140 1330 1520 1596 1680 1995 2128 2280 2660 3192 3990 4560 5320 6384 7980 10640 13163 15960 26326 31920 39489 52652 65815 78978 92141 105304 131630 157956 184282 197445 210608 250097 263260 276423 315912 368564 394890 460705 500194 526520 552846 631824 737128 750291 789780 921410 1000388 1053040 1105692 1250485 1382115 1474256 1500582 1579560 1750679 1842820 2000776 2211384 2500970 2764230 3001164 3159120 3501358 3685640 3751455 4001552 4422768 5001940 5252037 5528460 6002328 7002716 7371280 7502910 8753395 10003880 10504074 11056920 12004656 14005432 15005820 17506790 20007760 21008148 22113840 26260185 28010864 30011640 35013580 42016296 52520370 60023280 70027160 84032592 105040740 140054320 210081480 420162960