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190131088 = 24783113181
BaseRepresentation
bin10110101010100…
…10101110010000
3111020202122211011
423111102232100
5342133143323
630511100304
74466042020
oct1325225620
9436678734
10190131088
1198362334
1253811694
1330510304
141b373a80
1511a5a20d
hexb552b90

190131088 has 80 divisors (see below), whose sum is σ = 432222336. Its totient is φ = 79349760.

The previous prime is 190131037. The next prime is 190131089. The reversal of 190131088 is 880131091.

It is a super-2 number, since 2×1901310882 = 72299661248127488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190131089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050358 + ... + 1050538.

Almost surely, 2190131088 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 190131088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216111168).

190131088 is an abundant number, since it is smaller than the sum of its proper divisors (242091248).

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

190131088 is a wasteful number, since it uses less digits than its factorization.

190131088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 190131088 is about 13788.8029937337. The cubic root of 190131088 is about 575.0218900299.

The spelling of 190131088 in words is "one hundred ninety million, one hundred thirty-one thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 83 112 113 166 181 226 332 362 452 581 664 724 791 904 1162 1267 1328 1448 1582 1808 2324 2534 2896 3164 4648 5068 6328 9296 9379 10136 12656 15023 18758 20272 20453 30046 37516 40906 60092 65653 75032 81812 105161 120184 131306 143171 150064 163624 210322 240368 262612 286342 327248 420644 525224 572684 841288 1050448 1145368 1682576 1697599 2290736 3395198 6790396 11883193 13580792 23766386 27161584 47532772 95065544 190131088