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229907136 = 2631197433
BaseRepresentation
bin11011011010000…
…01101011000000
3121000121111022010
431231001223000
5432324012021
634451412520
75461115124
oct1555015300
9530544263
10229907136
1110885a6a8
1264bb4140
1338828c34
1422769584
15152b5976
hexdb41ac0

229907136 has 28 divisors (see below), whose sum is σ = 608296472. Its totient is φ = 76635648.

The previous prime is 229907113. The next prime is 229907257. The reversal of 229907136 is 631709922.

It is a junction number, because it is equal to n+sod(n) for n = 229907094 and 229907103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598525 + ... + 598908.

It is an arithmetic number, because the mean of its divisors is an integer number (21724874).

Almost surely, 2229907136 is an apocalyptic number.

It is an amenable number.

229907136 is an abundant number, since it is smaller than the sum of its proper divisors (378389336).

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

229907136 is a wasteful number, since it uses less digits than its factorization.

229907136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197448 (or 1197438 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 229907136 is about 15162.6889435878. The cubic root of 229907136 is about 612.6100968825.

The spelling of 229907136 in words is "two hundred twenty-nine million, nine hundred seven thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 1197433 2394866 3592299 4789732 7184598 9579464 14369196 19158928 28738392 38317856 57476784 76635712 114953568 229907136