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229506972 = 22323831547
BaseRepresentation
bin11011010110111…
…11111110011100
3120222212011101020
431223133332130
5432223210342
634435044140
75454530352
oct1553377634
9528764336
10229506972
11108606a92
1264a40650
1338718a56
14226a37d2
15152370ec
hexdadff9c

229506972 has 24 divisors (see below), whose sum is σ = 558800256. Its totient is φ = 73176048.

The previous prime is 229506961. The next prime is 229506973. The reversal of 229506972 is 279605922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229506973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415498 + ... + 416049.

It is an arithmetic number, because the mean of its divisors is an integer number (23283344).

Almost surely, 2229506972 is an apocalyptic number.

It is an amenable number.

229506972 is an abundant number, since it is smaller than the sum of its proper divisors (329293284).

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

229506972 is a wasteful number, since it uses less digits than its factorization.

229506972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831577 (or 831575 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 229506972 is about 15149.4875160845. The cubic root of 229506972 is about 612.2544650722.

The spelling of 229506972 in words is "two hundred twenty-nine million, five hundred six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 831547 1663094 2494641 3326188 4989282 9978564 19125581 38251162 57376743 76502324 114753486 229506972