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28898376 = 2331392623
BaseRepresentation
bin110111000111…
…1010001001000
32000101012010020
41232033101020
524344222001
62511220440
7500426553
oct156172110
960335106
1028898376
1115348861
129817720
135caa740
143ba369a
15280c736
hex1b8f448

28898376 has 32 divisors (see below), whose sum is σ = 77804160. Its totient is φ = 8891712.

The previous prime is 28898357. The next prime is 28898381. The reversal of 28898376 is 67389882.

It is a super-2 number, since 2×288983762 = 1670232270874752, which contains 22 as substring.

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, 46000 + ... + 46623.

It is an arithmetic number, because the mean of its divisors is an integer number (2431380).

Almost surely, 228898376 is an apocalyptic number.

28898376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28898376 is an abundant number, since it is smaller than the sum of its proper divisors (48905784).

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

28898376 is a wasteful number, since it uses less digits than its factorization.

28898376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92645 (or 92641 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 28898376 is about 5375.7209749019. The cubic root of 28898376 is about 306.8723876953.

The spelling of 28898376 in words is "twenty-eight million, eight hundred ninety-eight thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 92623 185246 277869 370492 555738 740984 1111476 1204099 2222952 2408198 3612297 4816396 7224594 9632792 14449188 28898376