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47039023 = 199236377
BaseRepresentation
bin1011001101110…
…0001000101111
310021111211102001
42303130020233
544020222043
64400113131
71110553003
oct263341057
9107454361
1047039023
1124609129
12139057a7
13998c755
146366703
1541e274d
hex2cdc22f

47039023 has 4 divisors (see below), whose sum is σ = 47275600. Its totient is φ = 46802448.

The previous prime is 47039021. The next prime is 47039063. The reversal of 47039023 is 32093074.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47039023 - 21 = 47039021 is a prime.

It is the 6859-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47038982 and 47039000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47039021) by changing a digit.

It is a nontrivial repunit in base 6858.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117990 + ... + 118387.

It is an arithmetic number, because the mean of its divisors is an integer number (11818900).

Almost surely, 247039023 is an apocalyptic number.

47039023 is a deficient number, since it is larger than the sum of its proper divisors (236577).

47039023 is a wasteful number, since it uses less digits than its factorization.

47039023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236576.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 47039023 is about 6858.5000546767. The cubic root of 47039023 is about 360.9824578457.

It can be divided in two parts, 470 and 39023, that added together give a palindrome (39493).

The spelling of 47039023 in words is "forty-seven million, thirty-nine thousand, twenty-three".

Divisors: 1 199 236377 47039023