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232990220 = 22511649511
BaseRepresentation
bin11011110001100…
…10011000001100
3121020102010111102
431320302120030
5434121141340
635041442232
75526245531
oct1570623014
9536363442
10232990220
1110a576001
1266040378
1339368348
1422d2cd88
15156c4215
hexde3260c

232990220 has 12 divisors (see below), whose sum is σ = 489279504. Its totient is φ = 93196080.

The previous prime is 232990201. The next prime is 232990267. The reversal of 232990220 is 22099232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5824736 + ... + 5824775.

It is an arithmetic number, because the mean of its divisors is an integer number (40773292).

Almost surely, 2232990220 is an apocalyptic number.

232990220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232990220 is an abundant number, since it is smaller than the sum of its proper divisors (256289284).

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

232990220 is a wasteful number, since it uses less digits than its factorization.

232990220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11649520 (or 11649518 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 232990220 is about 15264.0171645606. The cubic root of 232990220 is about 615.3363396985.

The spelling of 232990220 in words is "two hundred thirty-two million, nine hundred ninety thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 11649511 23299022 46598044 58247555 116495110 232990220