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2015272 = 23725397
BaseRepresentation
bin111101100000000101000
310210101102201
413230000220
51003442042
6111105544
723062300
oct7540050
93711381
102015272
111157116
128122b4
1355738c
143a6600
1529c1b7
hex1ec028

2015272 has 48 divisors (see below), whose sum is σ = 4524660. Its totient is φ = 838656.

The previous prime is 2015269. The next prime is 2015287. The reversal of 2015272 is 2725102.

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 15876 = 1414^2 + 126^2 .

It is a super-2 number, since 2×20152722 = 8122642467968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20728 + ... + 20824.

22015272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262330).

2015272 is an abundant number, since it is smaller than the sum of its proper divisors (2509388).

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

2015272 is a wasteful number, since it uses less digits than its factorization.

2015272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2015272 is about 1419.6027613385. The cubic root of 2015272 is about 126.3119840715.

The spelling of 2015272 in words is "two million, fifteen thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 49 53 56 97 98 106 194 196 212 371 388 392 424 679 742 776 1358 1484 2597 2716 2968 4753 5141 5194 5432 9506 10282 10388 19012 20564 20776 35987 38024 41128 71974 143948 251909 287896 503818 1007636 2015272