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2755413921 = 31370651639
BaseRepresentation
bin1010010000111100…
…0100011110100001
321010000210112022110
42210033010132201
521120341221141
61133230025533
7125165426511
oct24417043641
97100715273
102755413921
1111943a5297
1264a9482a9
1334bb19150
141c1d39841
15111d7de16
hexa43c47a1

2755413921 has 8 divisors (see below), whose sum is σ = 3956491840. Its totient is φ = 1695639312.

The previous prime is 2755413883. The next prime is 2755413959. The reversal of 2755413921 is 1293145572.

It is an interprime number because it is at equal distance from previous prime (2755413883) and next prime (2755413959).

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

It is not a de Polignac number, because 2755413921 - 223 = 2747025313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 70651639 = 2755413921 / (2 + 7 + 5 + 5 + 4 + 1 + 3 + 9 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2755413921.

It is not an unprimeable number, because it can be changed into a prime (2755413121) 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, 35325781 + ... + 35325858.

It is an arithmetic number, because the mean of its divisors is an integer number (494561480).

Almost surely, 22755413921 is an apocalyptic number.

It is an amenable number.

2755413921 is a deficient number, since it is larger than the sum of its proper divisors (1201077919).

2755413921 is a wasteful number, since it uses less digits than its factorization.

2755413921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70651655.

The product of its digits is 75600, while the sum is 39.

The square root of 2755413921 is about 52492.0367389188. The cubic root of 2755413921 is about 1401.9384577752.

The spelling of 2755413921 in words is "two billion, seven hundred fifty-five million, four hundred thirteen thousand, nine hundred twenty-one".

Divisors: 1 3 13 39 70651639 211954917 918471307 2755413921