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47124001 = 431095907
BaseRepresentation
bin1011001111000…
…0111000100001
310021200010222101
42303300320201
544030432001
64402010401
71111355521
oct263607041
9107603871
1047124001
1124666a61
1213946a01
1399bc332
146389681
15420ca01
hex2cf0e21

47124001 has 4 divisors (see below), whose sum is σ = 48219952. Its totient is φ = 46028052.

The previous prime is 47123969. The next prime is 47124013. The reversal of 47124001 is 10042174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10042174 = 25021087.

It is a cyclic number.

It is not a de Polignac number, because 47124001 - 25 = 47123969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47124001.

It is not an unprimeable number, because it can be changed into a prime (47124041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547911 + ... + 547996.

It is an arithmetic number, because the mean of its divisors is an integer number (12054988).

Almost surely, 247124001 is an apocalyptic number.

It is an amenable number.

47124001 is a deficient number, since it is larger than the sum of its proper divisors (1095951).

47124001 is a wasteful number, since it uses less digits than its factorization.

47124001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095950.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 47124001 is about 6864.6923456190. The cubic root of 47124001 is about 361.1997038089.

Adding to 47124001 its reverse (10042174), we get a palindrome (57166175).

The spelling of 47124001 in words is "forty-seven million, one hundred twenty-four thousand, one".

Divisors: 1 43 1095907 47124001