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47877492 = 223131929557
BaseRepresentation
bin1011011010100…
…0110101110100
310100002102120110
42312220311310
544224034432
64430103020
71120644345
oct266506564
9110072513
1047877492
1125031083
121404aa70
139bc42a0
1465040cc
15430adcc
hex2da8d74

47877492 has 96 divisors (see below), whose sum is σ = 131241600. Its totient is φ = 13450752.

The previous prime is 47877469. The next prime is 47877499. The reversal of 47877492 is 29477874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47877499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85678 + ... + 86234.

It is an arithmetic number, because the mean of its divisors is an integer number (1367100).

Almost surely, 247877492 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 47877492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65620800).

47877492 is an abundant number, since it is smaller than the sum of its proper divisors (83364108).

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

47877492 is a wasteful number, since it uses less digits than its factorization.

47877492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 623 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 47877492 is about 6919.3563284456. The cubic root of 47877492 is about 363.1146720865.

The spelling of 47877492 in words is "forty-seven million, eight hundred seventy-seven thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 19 26 29 38 39 52 57 58 76 78 87 114 116 156 174 228 247 348 377 494 551 557 741 754 988 1102 1114 1131 1482 1508 1653 1671 2204 2228 2262 2964 3306 3342 4524 6612 6684 7163 7241 10583 14326 14482 16153 21166 21489 21723 28652 28964 31749 32306 42332 42978 43446 48459 63498 64612 85956 86892 96918 126996 137579 193836 209989 275158 306907 412737 419978 550316 613814 629967 825474 839956 920721 1227628 1259934 1650948 1841442 2519868 3682884 3989791 7979582 11969373 15959164 23938746 47877492