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12552072 = 2331340231
BaseRepresentation
bin101111111000…
…011110001000
3212121201012120
4233320132020
511203131242
61125011240
7211455651
oct57703610
925551176
1012552072
1170a3615
124253b20
1327a6380
14194a528
15117e1ec
hexbf8788

12552072 has 32 divisors (see below), whose sum is σ = 33794880. Its totient is φ = 3862080.

The previous prime is 12552061. The next prime is 12552079. The reversal of 12552072 is 27025521.

It is a super-2 number, since 2×125520722 = 315109022986368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12552079) 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 7 ways as a sum of consecutive naturals, for example, 19804 + ... + 20427.

It is an arithmetic number, because the mean of its divisors is an integer number (1056090).

Almost surely, 212552072 is an apocalyptic number.

12552072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12552072 is an abundant number, since it is smaller than the sum of its proper divisors (21242808).

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

12552072 is a wasteful number, since it uses less digits than its factorization.

12552072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40253 (or 40249 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12552072 is about 3542.8903454665. The cubic root of 12552072 is about 232.4012576424.

Adding to 12552072 its reverse (27025521), we get a palindrome (39577593).

The spelling of 12552072 in words is "twelve million, five hundred fifty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 40231 80462 120693 160924 241386 321848 482772 523003 965544 1046006 1569009 2092012 3138018 4184024 6276036 12552072