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32990123830 = 2523143435321
BaseRepresentation
bin11110101110010111…
…010101011100110110
310011011010201221011011
4132232113111130312
51020030432430310
623053324502434
72245345266016
oct365627253466
9104133657134
1032990123830
1112a9a079354
1264883aaa1a
1331599cc241
14184d5ddc46
15cd13bb78a
hex7ae5d5736

32990123830 has 16 divisors (see below), whose sum is σ = 61964059104. Its totient is φ = 12622308160.

The previous prime is 32990123827. The next prime is 32990123843. The reversal of 32990123830 is 3832109923.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71717431 + ... + 71717890.

It is an arithmetic number, because the mean of its divisors is an integer number (3872753694).

Almost surely, 232990123830 is an apocalyptic number.

32990123830 is a deficient number, since it is larger than the sum of its proper divisors (28973935274).

32990123830 is a wasteful number, since it uses less digits than its factorization.

32990123830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143435351.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 32990123830 in words is "thirty-two billion, nine hundred ninety million, one hundred twenty-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 143435321 286870642 717176605 1434353210 3299012383 6598024766 16495061915 32990123830