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47023743 = 3132137677
BaseRepresentation
bin1011001101100…
…0011001111111
310021111001110010
42303120121333
544014224433
64355514303
71110460314
oct263303177
9107431403
1047023743
11245a86a8
12138b8993
139985800
146360d0b
1541dce63
hex2cd867f

47023743 has 24 divisors (see below), whose sum is σ = 68488848. Its totient is φ = 28684032.

The previous prime is 47023729. The next prime is 47023747. The reversal of 47023743 is 34732074.

It is not a de Polignac number, because 47023743 - 210 = 47022719 is a prime.

It is a super-2 number, since 2×470237432 = 4422464811460098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47023743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47023747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69121 + ... + 69797.

It is an arithmetic number, because the mean of its divisors is an integer number (2853702).

Almost surely, 247023743 is an apocalyptic number.

47023743 is a deficient number, since it is larger than the sum of its proper divisors (21465105).

47023743 is a wasteful number, since it uses less digits than its factorization.

47023743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 47023743 is about 6857.3860180101. The cubic root of 47023743 is about 360.9433668318.

The spelling of 47023743 in words is "forty-seven million, twenty-three thousand, seven hundred forty-three".

Divisors: 1 3 13 39 137 169 411 507 677 1781 2031 5343 8801 23153 26403 69459 92749 114413 278247 343239 1205737 3617211 15674581 47023743