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2949901969 = 7277592
BaseRepresentation
bin1010111111010011…
…1110111010010001
321121120202112202111
42233310332322101
522020133330334
61204414345321
7133046516200
oct25764767221
97546675674
102949901969
111284163013
126a3abb241
133801c3631
141ddac5237
15123e9a064
hexafd3ee91

2949901969 has 9 divisors (see below), whose sum is σ = 3431960937. Its totient is φ = 2528161524.

The previous prime is 2949901967. The next prime is 2949901979. The reversal of 2949901969 is 9691099492.

The square root of 2949901969 is 54313.

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

It is not a de Polignac number, because 2949901969 - 21 = 2949901967 is a prime.

It is a super-2 number, since 2×29499019692 = 17403843253420153922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2949901967) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 376312 + ... + 384070.

It is an arithmetic number, because the mean of its divisors is an integer number (381328993).

Almost surely, 22949901969 is an apocalyptic number.

2949901969 is the 54313-rd square number.

2949901969 is the 27157-th centered octagonal number.

It is an amenable number.

2949901969 is a deficient number, since it is larger than the sum of its proper divisors (482058968).

2949901969 is an frugal number, since it uses more digits than its factorization.

2949901969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15532 (or 7766 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 58.

The cubic root of 2949901969 is about 1434.1762553677.

The spelling of 2949901969 in words is "two billion, nine hundred forty-nine million, nine hundred one thousand, nine hundred sixty-nine".

Divisors: 1 7 49 7759 54313 380191 60202081 421414567 2949901969