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7130400253 = 171759238451
BaseRepresentation
bin1101010010000000…
…10100010111111101
3200101221002212022021
412221000110113331
5104100340302003
63135313120141
7341461254634
oct65100242775
920357085267
107130400253
113029a1a279
12146bb59051
13898331962
144b8dc251b
152baec62bd
hex1a90145fd

7130400253 has 8 divisors (see below), whose sum is σ = 7554159360. Its totient is φ = 6707121600.

The previous prime is 7130400217. The next prime is 7130400289. The reversal of 7130400253 is 3520040317.

It is an interprime number because it is at equal distance from previous prime (7130400217) and next prime (7130400289).

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

It is a cyclic number.

It is not a de Polignac number, because 7130400253 - 29 = 7130399741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7130400293) 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, 89323 + ... + 149128.

It is an arithmetic number, because the mean of its divisors is an integer number (944269920).

Almost surely, 27130400253 is an apocalyptic number.

It is an amenable number.

7130400253 is a deficient number, since it is larger than the sum of its proper divisors (423759107).

7130400253 is a wasteful number, since it uses less digits than its factorization.

7130400253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240227.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 7130400253 is about 84441.6973597760. The cubic root of 7130400253 is about 1924.7365921023.

The spelling of 7130400253 in words is "seven billion, one hundred thirty million, four hundred thousand, two hundred fifty-three".

Divisors: 1 17 1759 29903 238451 4053667 419435309 7130400253