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354115920 = 24351979983
BaseRepresentation
bin10101000110110…
…110000101010000
3220200022221201110
4111012312011100
51211123202140
655045533320
711526635634
oct2506660520
9820287643
10354115920
11171986594
129a714240
1358497762
143505cdc4
152114d380
hex151b6150

354115920 has 160 divisors (see below), whose sum is σ = 1171353600. Its totient is φ = 88238592.

The previous prime is 354115903. The next prime is 354115921. The reversal of 354115920 is 29511453.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354115921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359749 + ... + 360731.

It is an arithmetic number, because the mean of its divisors is an integer number (7320960).

Almost surely, 2354115920 is an apocalyptic number.

354115920 is a gapful number since it is divisible by the number (30) 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 354115920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585676800).

354115920 is an abundant number, since it is smaller than the sum of its proper divisors (817237680).

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

354115920 is a wasteful number, since it uses less digits than its factorization.

354115920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 354115920 is about 18817.9680093256. The cubic root of 354115920 is about 707.4816020721.

The spelling of 354115920 in words is "three hundred fifty-four million, one hundred fifteen thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 79 80 95 114 120 152 158 190 228 237 240 285 304 316 380 395 456 474 570 632 760 790 912 948 983 1140 1185 1264 1501 1520 1580 1896 1966 2280 2370 2949 3002 3160 3792 3932 4503 4560 4740 4915 5898 6004 6320 7505 7864 9006 9480 9830 11796 12008 14745 15010 15728 18012 18677 18960 19660 22515 23592 24016 29490 30020 36024 37354 39320 45030 47184 56031 58980 60040 72048 74708 77657 78640 90060 93385 112062 117960 120080 149416 155314 180120 186770 224124 232971 235920 280155 298832 310628 360240 373540 388285 448248 465942 560310 621256 747080 776570 896496 931884 1120620 1164855 1242512 1475483 1494160 1553140 1863768 2241240 2329710 2950966 3106280 3727536 4426449 4482480 4659420 5901932 6212560 7377415 8852898 9318840 11803864 14754830 17705796 18637680 22132245 23607728 29509660 35411592 44264490 59019320 70823184 88528980 118038640 177057960 354115920