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2745202031 = 11133293917
BaseRepresentation
bin1010001110100000…
…0111010101101111
321002022120201020022
42203220013111233
521110232431111
61132223112355
7125012555315
oct24350072557
97068521208
102745202031
11118965aa10
126474426bb
13349982000
141c083c0b5
151110132db
hexa3a0756f

2745202031 has 32 divisors (see below), whose sum is σ = 3356942400. Its totient is φ = 2223661440.

The previous prime is 2745202021. The next prime is 2745202037. The reversal of 2745202031 is 1302025472.

It is not a de Polignac number, because 2745202031 - 218 = 2744939887 is a prime.

It is a super-2 number, since 2×27452020312 = 15072268382013049922, 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 (2745202037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698885 + ... + 702801.

It is an arithmetic number, because the mean of its divisors is an integer number (104904450).

Almost surely, 22745202031 is an apocalyptic number.

2745202031 is a deficient number, since it is larger than the sum of its proper divisors (611740369).

2745202031 is a wasteful number, since it uses less digits than its factorization.

2745202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996 (or 3970 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2745202031 is about 52394.6755978124. The cubic root of 2745202031 is about 1400.2043971978.

The spelling of 2745202031 in words is "two billion, seven hundred forty-five million, two hundred two thousand, thirty-one".

Divisors: 1 11 13 29 143 169 319 377 1859 2197 3917 4147 4901 24167 43087 50921 53911 63713 113593 560131 661973 700843 1249523 1476709 7281703 8605649 16243799 19197217 94662139 211169387 249563821 2745202031