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290925492 = 2231113198923
BaseRepresentation
bin10001010101110…
…010101110110100
3202021102112202020
4101111302232310
51043434103432
644511313140
710131553164
oct2125625664
9667375666
10290925492
1113a2466a0
128151b7b0
1348371580
142a8d05a4
151a81a22c
hex11572bb4

290925492 has 96 divisors (see below), whose sum is σ = 839569920. Its totient is φ = 77086080.

The previous prime is 290925461. The next prime is 290925517. The reversal of 290925492 is 294529092.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 28143 + ... + 37065.

It is an arithmetic number, because the mean of its divisors is an integer number (8745520).

Almost surely, 2290925492 is an apocalyptic number.

290925492 is a gapful number since it is divisible by the number (22) 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 290925492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419784960).

290925492 is an abundant number, since it is smaller than the sum of its proper divisors (548644428).

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

290925492 is a wasteful number, since it uses less digits than its factorization.

290925492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973 (or 8971 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 290925492 is about 17056.5381012678. The cubic root of 290925492 is about 662.6139769252.

The spelling of 290925492 in words is "two hundred ninety million, nine hundred twenty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 13 19 22 26 33 38 39 44 52 57 66 76 78 114 132 143 156 209 228 247 286 418 429 494 572 627 741 836 858 988 1254 1482 1716 2508 2717 2964 5434 8151 8923 10868 16302 17846 26769 32604 35692 53538 98153 107076 115999 169537 196306 231998 294459 339074 347997 392612 463996 508611 588918 678148 695994 1017222 1177836 1275989 1391988 1864907 2034444 2203981 2551978 3729814 3827967 4407962 5103956 5594721 6611943 7459628 7655934 8815924 11189442 13223886 15311868 22378884 24243791 26447772 48487582 72731373 96975164 145462746 290925492