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47152252 = 2274339163
BaseRepresentation
bin1011001111011…
…1110001111100
310021201120201201
42303313301330
544032333002
64402345244
71111534060
oct263676174
9107646651
1047152252
1124686204
121395b224
1399cc154
146395aa0
154216087
hex2cf7c7c

47152252 has 24 divisors (see below), whose sum is σ = 96500096. Its totient is φ = 19737648.

The previous prime is 47152241. The next prime is 47152253. The reversal of 47152252 is 25225174.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 47152252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47152253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18378 + ... + 20785.

Almost surely, 247152252 is an apocalyptic number.

It is an amenable number.

47152252 is an abundant number, since it is smaller than the sum of its proper divisors (49347844).

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

47152252 is a wasteful number, since it uses less digits than its factorization.

47152252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39217 (or 39215 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 47152252 is about 6866.7497405978. The cubic root of 47152252 is about 361.2718695428.

The spelling of 47152252 in words is "forty-seven million, one hundred fifty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 39163 78326 156652 274141 548282 1096564 1684009 3368018 6736036 11788063 23576126 47152252