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8049498961 = 7418312
BaseRepresentation
bin1110111111100100…
…11001101101010001
3202202222112220201011
413133302121231101
5112441132431321
63410424410521
7403321420000
oct73762315521
922688486634
108049498961
113460806789
121687916a41
139b388444a
145650b0c37
15321a26ae1
hex1dfc99b51

8049498961 has 15 divisors (see below), whose sum is σ = 9395654793. Its totient is φ = 6895802340.

The previous prime is 8049498953. The next prime is 8049498971. The reversal of 8049498961 is 1698949408.

It is a happy number.

The square root of 8049498961 is 89719.

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

It is not a de Polignac number, because 8049498961 - 23 = 8049498953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8049498896 and 8049498905.

It is not an unprimeable number, because it can be changed into a prime (8049498901) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4395316 + ... + 4397146.

Almost surely, 28049498961 is an apocalyptic number.

8049498961 is the 89719-th square number.

8049498961 is the 44860-th centered octagonal number.

It is an amenable number.

8049498961 is a deficient number, since it is larger than the sum of its proper divisors (1346155832).

8049498961 is an frugal number, since it uses more digits than its factorization.

8049498961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 58.

The cubic root of 8049498961 is about 2004.1164350850.

The spelling of 8049498961 in words is "eight billion, forty-nine million, four hundred ninety-eight thousand, nine hundred sixty-one".

Divisors: 1 7 49 343 1831 2401 12817 89719 628033 3352561 4396231 23467927 164275489 1149928423 8049498961