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2991130401 = 371301109481
BaseRepresentation
bin1011001001001001…
…0000011100100001
321201110100011112110
42302102100130201
522111212133101
61212450145533
7134060121540
oct26222203441
97643304473
102991130401
1112a54625a6
126b58822a9
133888ca35c
14205378157
151278e0cd6
hexb2490721

2991130401 has 16 divisors (see below), whose sum is σ = 4561458048. Its totient is φ = 1707888000.

The previous prime is 2991130369. The next prime is 2991130421. The reversal of 2991130401 is 1040311992.

It is not a de Polignac number, because 2991130401 - 25 = 2991130369 is a prime.

It is a super-2 number, since 2×29911304012 = 17893722151572841602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2991130421) 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, 27420 + ... + 82061.

It is an arithmetic number, because the mean of its divisors is an integer number (285091128).

Almost surely, 22991130401 is an apocalyptic number.

2991130401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2991130401 is a deficient number, since it is larger than the sum of its proper divisors (1570327647).

2991130401 is a wasteful number, since it uses less digits than its factorization.

2991130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110792.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 2991130401 is about 54691.2278249447. The cubic root of 2991130401 is about 1440.8268144270.

The spelling of 2991130401 in words is "two billion, nine hundred ninety-one million, one hundred thirty thousand, four hundred one".

Divisors: 1 3 7 21 1301 3903 9107 27321 109481 328443 766367 2299101 142434781 427304343 997043467 2991130401