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47972652 = 223713197223
BaseRepresentation
bin1011011100000…
…0000100101100
310100021021002220
42313000010230
544240111102
64432115340
71121521650
oct267000454
9110237086
1047972652
1125096622
1214095b50
139c286b0
14652aa60
1543291bc
hex2dc012c

47972652 has 96 divisors (see below), whose sum is σ = 139087872. Its totient is φ = 12531456.

The previous prime is 47972633. The next prime is 47972669. The reversal of 47972652 is 25627974.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215013 + ... + 215235.

It is an arithmetic number, because the mean of its divisors is an integer number (1448832).

Almost surely, 247972652 is an apocalyptic number.

47972652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47972652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69543936).

47972652 is an abundant number, since it is smaller than the sum of its proper divisors (91115220).

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

47972652 is a wasteful number, since it uses less digits than its factorization.

47972652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 47972652 is about 6926.2292771753. The cubic root of 47972652 is about 363.3550851570.

The spelling of 47972652 in words is "forty-seven million, nine hundred seventy-two thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 197 223 273 364 394 446 546 591 669 788 892 1092 1182 1338 1379 1561 2364 2561 2676 2758 2899 3122 4137 4683 5122 5516 5798 6244 7683 8274 8697 9366 10244 11596 15366 16548 17394 17927 18732 20293 30732 34788 35854 40586 43931 53781 60879 71708 81172 87862 107562 121758 131793 175724 215124 243516 263586 307517 527172 571103 615034 922551 1142206 1230068 1713309 1845102 2284412 3426618 3690204 3997721 6853236 7995442 11993163 15990884 23986326 47972652