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252051384 = 233131747521
BaseRepresentation
bin11110000010111…
…11111110111000
3122120021112111110
433001133332320
51004011121014
641002200320
76150254454
oct1701377670
9576245443
10252051384
1111a304a32
12704b30a0
13402b0340
1425691664
15171dbd59
hexf05ffb8

252051384 has 64 divisors (see below), whose sum is σ = 718532640. Its totient is φ = 72990720.

The previous prime is 252051379. The next prime is 252051389. The reversal of 252051384 is 483150252.

It is an interprime number because it is at equal distance from previous prime (252051379) and next prime (252051389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252051389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18457 + ... + 29064.

Almost surely, 2252051384 is an apocalyptic number.

252051384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252051384 is an abundant number, since it is smaller than the sum of its proper divisors (466481256).

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

252051384 is a wasteful number, since it uses less digits than its factorization.

252051384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47560 (or 47556 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 252051384 is about 15876.1262277673. The cubic root of 252051384 is about 631.6788880413.

The spelling of 252051384 in words is "two hundred fifty-two million, fifty-one thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 13 17 24 26 34 39 51 52 68 78 102 104 136 156 204 221 312 408 442 663 884 1326 1768 2652 5304 47521 95042 142563 190084 285126 380168 570252 617773 807857 1140504 1235546 1615714 1853319 2423571 2471092 3231428 3706638 4847142 4942184 6462856 7413276 9694284 10502141 14826552 19388568 21004282 31506423 42008564 63012846 84017128 126025692 252051384