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30280525005253 = 251831202419291
BaseRepresentation
bin1101110001010001110111…
…11011111100000111000101
310222012210022211222112210111
412320220323323330013011
512432104003400132003
6144222403043353021
76243460431525325
oct670507373740705
9128183284875714
1030280525005253
119714997a54576
12349069a682771
1313b8597591a13
14769829c2b285
153779ec873e6d
hex1b8a3befc1c5

30280525005253 has 4 divisors (see below), whose sum is σ = 30281727449728. Its totient is φ = 30279322560780.

The previous prime is 30280525005229. The next prime is 30280525005257. The reversal of 30280525005253 is 35250052508203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30280525005253 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 (30280525005257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601184463 + ... + 601234828.

It is an arithmetic number, because the mean of its divisors is an integer number (7570431862432).

Almost surely, 230280525005253 is an apocalyptic number.

It is an amenable number.

30280525005253 is a deficient number, since it is larger than the sum of its proper divisors (1202444475).

30280525005253 is a wasteful number, since it uses less digits than its factorization.

30280525005253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202444474.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 30280525005253 in words is "thirty trillion, two hundred eighty billion, five hundred twenty-five million, five thousand, two hundred fifty-three".

Divisors: 1 25183 1202419291 30280525005253