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308232972 = 223319150211
BaseRepresentation
bin10010010111110…
…100001100001100
3210110222212011000
4102113310030030
51112401423342
650330300300
710431636255
oct2227641414
9713885130
10308232972
11148a97aa3
1287287690
134bb21298
142cd17b2c
151c0d844c
hex125f430c

308232972 has 48 divisors (see below), whose sum is σ = 841187200. Its totient is φ = 97336080.

The previous prime is 308232971. The next prime is 308232973. The reversal of 308232972 is 279232803.

308232972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (308232971) and next prime (308232973).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (308232971) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 73054 + ... + 77157.

Almost surely, 2308232972 is an apocalyptic number.

It is an amenable number.

308232972 is an abundant number, since it is smaller than the sum of its proper divisors (532954228).

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

308232972 is a wasteful number, since it uses less digits than its factorization.

308232972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150243 (or 150235 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 308232972 is about 17556.5649259757. The cubic root of 308232972 is about 675.5015728825.

The spelling of 308232972 in words is "three hundred eight million, two hundred thirty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 114 171 228 342 513 684 1026 2052 150211 300422 450633 600844 901266 1351899 1802532 2703798 2854009 4055697 5407596 5708018 8111394 8562027 11416036 16222788 17124054 25686081 34248108 51372162 77058243 102744324 154116486 308232972