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231077252 = 2278252759
BaseRepresentation
bin11011100010111…
…11010110000100
3121002210221101202
431301133112010
5433123433002
634532442032
75504060420
oct1561372604
9532727352
10231077252
1110948983a
1265479318
1338b48703
1422991b80
1515447502
hexdc5f584

231077252 has 12 divisors (see below), whose sum is σ = 462154560. Its totient is φ = 99033096.

The previous prime is 231077219. The next prime is 231077261. The reversal of 231077252 is 252770132.

231077252 is an admirable number.

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, 4126352 + ... + 4126407.

It is an arithmetic number, because the mean of its divisors is an integer number (38512880).

Almost surely, 2231077252 is an apocalyptic number.

It is an amenable number.

231077252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231077252 is a wasteful number, since it uses less digits than its factorization.

231077252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252770 (or 8252768 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 231077252 is about 15201.2253453463. The cubic root of 231077252 is about 613.6476349342.

The spelling of 231077252 in words is "two hundred thirty-one million, seventy-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 8252759 16505518 33011036 57769313 115538626 231077252