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47393268 = 22313303803
BaseRepresentation
bin1011010011001…
…0100111110100
310022011211100020
42310302213310
544113041033
64411445140
71113556536
oct264624764
9108154306
1047393268
112483029a
1213a567b0
139a84a70
146419856
1542626b3
hex2d329f4

47393268 has 24 divisors (see below), whose sum is σ = 119091168. Its totient is φ = 14582496.

The previous prime is 47393261. The next prime is 47393323. The reversal of 47393268 is 86239374.

It is a super-2 number, since 2×473932682 = 4492243703439648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47393261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151746 + ... + 152057.

It is an arithmetic number, because the mean of its divisors is an integer number (4962132).

Almost surely, 247393268 is an apocalyptic number.

It is an amenable number.

47393268 is an abundant number, since it is smaller than the sum of its proper divisors (71697900).

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

47393268 is a wasteful number, since it uses less digits than its factorization.

47393268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303823 (or 303821 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 47393268 is about 6884.2768683428. The cubic root of 47393268 is about 361.8863638110.

The spelling of 47393268 in words is "forty-seven million, three hundred ninety-three thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 303803 607606 911409 1215212 1822818 3645636 3949439 7898878 11848317 15797756 23696634 47393268