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47671000249 = 311153282959
BaseRepresentation
bin101100011001011010…
…011011110010111001
311120001021101201120211
4230121122123302321
51240112234001444
633522202551121
73305221550005
oct543132336271
9146037351524
1047671000249
1119243045074
1292a4b084a1
1346593b2c72
1424432b3705
151390195c34
hexb1969bcb9

47671000249 has 4 divisors (see below), whose sum is σ = 47824283520. Its totient is φ = 47517716980.

The previous prime is 47671000229. The next prime is 47671000261. The reversal of 47671000249 is 94200017674.

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 not a de Polignac number, because 47671000249 - 211 = 47670998201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47671000229) 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, 76641169 + ... + 76641790.

It is an arithmetic number, because the mean of its divisors is an integer number (11956070880).

Almost surely, 247671000249 is an apocalyptic number.

It is an amenable number.

47671000249 is a deficient number, since it is larger than the sum of its proper divisors (153283271).

47671000249 is a wasteful number, since it uses less digits than its factorization.

47671000249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153283270.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 47671000249 in words is "forty-seven billion, six hundred seventy-one million, two hundred forty-nine", and thus it is an aban number.

Divisors: 1 311 153282959 47671000249