Search a number
-
+
15056972 = 227537749
BaseRepresentation
bin111001011100…
…000001001100
31001022222021122
4321130001030
512323310342
61254420112
7241660610
oct71340114
931288248
1015056972
118554587
125061638
133172568
141ddd340
1514c64d2
hexe5c04c

15056972 has 12 divisors (see below), whose sum is σ = 30114000. Its totient is φ = 6452976.

The previous prime is 15056971. The next prime is 15056981. The reversal of 15056972 is 27965051.

15056972 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (15056971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268847 + ... + 268902.

It is an arithmetic number, because the mean of its divisors is an integer number (2509500).

Almost surely, 215056972 is an apocalyptic number.

It is an amenable number.

15056972 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.

15056972 is a wasteful number, since it uses less digits than its factorization.

15056972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537760 (or 537758 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 15056972 is about 3880.3314291436. The cubic root of 15056972 is about 246.9330463732.

The spelling of 15056972 in words is "fifteen million, fifty-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 537749 1075498 2150996 3764243 7528486 15056972