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47130253 = 307915307
BaseRepresentation
bin1011001111001…
…0011010001101
310021200110112221
42303302122031
544031132003
64402055341
71111412662
oct263623215
9107613487
1047130253
1124670725
121394a551
1399c2131
14638ba69
15420e7bd
hex2cf268d

47130253 has 4 divisors (see below), whose sum is σ = 47148640. Its totient is φ = 47111868.

The previous prime is 47130229. The next prime is 47130257. The reversal of 47130253 is 35203174.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47130253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47130257) 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, 4575 + ... + 10732.

It is an arithmetic number, because the mean of its divisors is an integer number (11787160).

Almost surely, 247130253 is an apocalyptic number.

It is an amenable number.

47130253 is a deficient number, since it is larger than the sum of its proper divisors (18387).

47130253 is a wasteful number, since it uses less digits than its factorization.

47130253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18386.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 47130253 is about 6865.1477041649. The cubic root of 47130253 is about 361.2156767077.

The spelling of 47130253 in words is "forty-seven million, one hundred thirty thousand, two hundred fifty-three".

Divisors: 1 3079 15307 47130253