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49970761 = 70692
BaseRepresentation
bin1011111010011…
…1111001001001
310111000202222221
42332213321021
5100243031021
64543014041
71144513231
oct276477111
9114022887
1049970761
1126230855
121489a321
13a477cc9
1468cacc1
1545c1241
hex2fa7e49

49970761 has 3 divisors (see below), whose sum is σ = 49977831. Its totient is φ = 49963692.

The previous prime is 49970749. The next prime is 49970797. The reversal of 49970761 is 16707994.

It is a happy number.

The square root of 49970761 is 7069.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 17480761 + 32490000 = 4181^2 + 5700^2 .

It is not a de Polignac number, because 49970761 - 213 = 49962569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49976761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3535 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (16659277).

Almost surely, 249970761 is an apocalyptic number.

49970761 is the 7069-th square number.

49970761 is the 3535-th centered octagonal number.

It is an amenable number.

49970761 is a deficient number, since it is larger than the sum of its proper divisors (7070).

49970761 is an frugal number, since it uses more digits than its factorization.

49970761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14138 (or 7069 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The cubic root of 49970761 is about 368.3313242635.

The spelling of 49970761 in words is "forty-nine million, nine hundred seventy thousand, seven hundred sixty-one".

Divisors: 1 7069 49970761