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30653156639 = 77961789839
BaseRepresentation
bin11100100011000100…
…100000110100011111
32221010021022200211202
4130203010200310133
51000234202003024
622025403310115
72133420350420
oct344304406437
987107280752
1030653156639
1111aaa9a9306
125b3581b33b
132b767b2b11
1416ab0ab647
15be6146bae
hex723120d1f

30653156639 has 16 divisors (see below), whose sum is σ = 35533516800. Its totient is φ = 25899217344.

The previous prime is 30653156581. The next prime is 30653156657. The reversal of 30653156639 is 93665135603.

It is not a de Polignac number, because 30653156639 - 28 = 30653156383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30653156593 and 30653156602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30653156659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296282 + ... + 386120.

It is an arithmetic number, because the mean of its divisors is an integer number (2220844800).

Almost surely, 230653156639 is an apocalyptic number.

30653156639 is a deficient number, since it is larger than the sum of its proper divisors (4880360161).

30653156639 is an equidigital number, since it uses as much as digits as its factorization.

30653156639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90542.

The product of its (nonzero) digits is 1312200, while the sum is 47.

The spelling of 30653156639 in words is "thirty billion, six hundred fifty-three million, one hundred fifty-six thousand, six hundred thirty-nine".

Divisors: 1 7 79 553 617 4319 48743 89839 341201 628873 7097281 49680967 55430663 388014641 4379022377 30653156639