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2755101981 = 36071512961
BaseRepresentation
bin1010010000110111…
…1000010100011101
321010000012200102010
42210031320110131
521120301230411
61133215221433
7125162660202
oct24415702435
97100180363
102755101981
111194201995
1264a817879
1334ba3a178
141c1c97ca9
15111d1b7a6
hexa437851d

2755101981 has 8 divisors (see below), whose sum is σ = 3679523584. Its totient is φ = 1833707520.

The previous prime is 2755101953. The next prime is 2755102033. The reversal of 2755101981 is 1891015572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2755101981 - 211 = 2755099933 is a prime.

It is a super-2 number, since 2×27551019812 = 15181173851420248722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755101931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754660 + ... + 758301.

It is an arithmetic number, because the mean of its divisors is an integer number (459940448).

Almost surely, 22755101981 is an apocalyptic number.

It is an amenable number.

2755101981 is a deficient number, since it is larger than the sum of its proper divisors (924421603).

2755101981 is a wasteful number, since it uses less digits than its factorization.

2755101981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513571.

The product of its (nonzero) digits is 25200, while the sum is 39.

The square root of 2755101981 is about 52489.0653469844. The cubic root of 2755101981 is about 1401.8855513639.

The spelling of 2755101981 in words is "two billion, seven hundred fifty-five million, one hundred one thousand, nine hundred eighty-one".

Divisors: 1 3 607 1821 1512961 4538883 918367327 2755101981