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49388961 = 3171950969
BaseRepresentation
bin1011110001100…
…1110110100001
310102221012220210
42330121312201
5100120421321
64522324333
71136541066
oct274316641
9112835823
1049388961
1125973726
12146596a9
13a30324b
1467b8c6d
154508b76
hex2f19da1

49388961 has 16 divisors (see below), whose sum is σ = 73396800. Its totient is φ = 29357568.

The previous prime is 49388909. The next prime is 49388987. The reversal of 49388961 is 16988394.

It is not a de Polignac number, because 49388961 - 215 = 49356193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49388961.

It is not an unprimeable number, because it can be changed into a prime (49388561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24516 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (4587300).

Almost surely, 249388961 is an apocalyptic number.

It is an amenable number.

49388961 is a deficient number, since it is larger than the sum of its proper divisors (24007839).

49388961 is a wasteful number, since it uses less digits than its factorization.

49388961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51008.

The product of its digits is 373248, while the sum is 48.

The square root of 49388961 is about 7027.7280112423. The cubic root of 49388961 is about 366.8962700603.

The spelling of 49388961 in words is "forty-nine million, three hundred eighty-eight thousand, nine hundred sixty-one".

Divisors: 1 3 17 19 51 57 323 969 50969 152907 866473 968411 2599419 2905233 16462987 49388961