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428093952 = 29311131949
BaseRepresentation
bin11001100001000…
…011001000000000
31002211112102111120
4121201003020000
51334043001302
6110251312240
713415511216
oct3141031000
91084472446
10428093952
111aa714360
12bb44b680
136a8c9b40
1440bd8cb6
15278b29bc
hex19843200

428093952 has 160 divisors (see below), whose sum is σ = 1340539200. Its totient is φ = 119685120.

The previous prime is 428093951. The next prime is 428093971. The reversal of 428093952 is 259390824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428093951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218674 + ... + 220622.

It is an arithmetic number, because the mean of its divisors is an integer number (8378370).

Almost surely, 2428093952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428093952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670269600).

428093952 is an abundant number, since it is smaller than the sum of its proper divisors (912445248).

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

428093952 is a wasteful number, since it uses less digits than its factorization.

428093952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 428093952 is about 20690.4314116453. The cubic root of 428093952 is about 753.6673431194.

The spelling of 428093952 in words is "four hundred twenty-eight million, ninety-three thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 64 66 78 88 96 104 128 132 143 156 176 192 208 256 264 286 312 352 384 416 429 512 528 572 624 704 768 832 858 1056 1144 1248 1408 1536 1664 1716 1949 2112 2288 2496 2816 3328 3432 3898 4224 4576 4992 5632 5847 6656 6864 7796 8448 9152 9984 11694 13728 15592 16896 18304 19968 21439 23388 25337 27456 31184 36608 42878 46776 50674 54912 62368 64317 73216 76011 85756 93552 101348 109824 124736 128634 152022 171512 187104 202696 219648 249472 257268 278707 304044 343024 374208 405392 498944 514536 557414 608088 686048 748416 810784 836121 997888 1029072 1114828 1216176 1372096 1496832 1621568 1672242 2058144 2229656 2432352 2744192 2993664 3243136 3344484 4116288 4459312 4864704 5488384 6486272 6688968 8232576 8918624 9729408 10976768 12972544 13377936 16465152 17837248 19458816 26755872 32930304 35674496 38917632 53511744 71348992 107023488 142697984 214046976 428093952