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47913091357 = 311154061387
BaseRepresentation
bin101100100111110101…
…111100000100011101
311120200010221020011011
4230213311330010131
51241111222410412
634002211455221
73314221361665
oct544765740435
9146603836134
1047913091357
111935776676a
129351bb7511
1346975b6841
1424674d11a5
1513a65667a7
hexb27d7c11d

47913091357 has 4 divisors (see below), whose sum is σ = 48067153056. Its totient is φ = 47759029660.

The previous prime is 47913091319. The next prime is 47913091367. The reversal of 47913091357 is 75319031974.

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: 75319031974 = 237659515987.

It is a cyclic number.

It is not a de Polignac number, because 47913091357 - 219 = 47912567069 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 47913091357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47913091367) 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, 77030383 + ... + 77031004.

It is an arithmetic number, because the mean of its divisors is an integer number (12016788264).

Almost surely, 247913091357 is an apocalyptic number.

It is an amenable number.

47913091357 is a deficient number, since it is larger than the sum of its proper divisors (154061699).

47913091357 is a wasteful number, since it uses less digits than its factorization.

47913091357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154061698.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 47913091357 in words is "forty-seven billion, nine hundred thirteen million, ninety-one thousand, three hundred fifty-seven".

Divisors: 1 311 154061387 47913091357