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30205102253013 = 3231121683497689
BaseRepresentation
bin1101101111000101011000…
…11000111110001111010101
310221221120122111202202022100
412313202230120332033111
512424340022134044023
6144124011000152313
76235150406645352
oct667425430761725
9127846574682270
1030205102253013
119695a0385a486
123479b4b768699
1313b143783c13c
14765d12d49629
15375a86151c43
hex1b78ac63e3d5

30205102253013 has 24 divisors (see below), whose sum is σ = 43771986797760. Its totient is φ = 20071020461760.

The previous prime is 30205102252991. The next prime is 30205102253057. The reversal of 30205102253013 is 31035220150203.

It is a happy number.

30205102253013 is a `hidden beast` number, since 3 + 0 + 20 + 5 + 102 + 2 + 530 + 1 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2k-30205102253013 is a prime.

It is a super-2 number, since 2×302051022530132 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205102253213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60441873 + ... + 60939561.

It is an arithmetic number, because the mean of its divisors is an integer number (1823832783240).

Almost surely, 230205102253013 is an apocalyptic number.

It is an amenable number.

30205102253013 is a deficient number, since it is larger than the sum of its proper divisors (13566884544747).

30205102253013 is a wasteful number, since it uses less digits than its factorization.

30205102253013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519689 (or 519686 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 30205102253013 in words is "thirty trillion, two hundred five billion, one hundred two million, two hundred fifty-three thousand, thirteen".

Divisors: 1 3 9 311 933 2799 21683 65049 195147 497689 1493067 4479201 6743413 20230239 60690717 154781279 464343837 1393031511 10791390587 32374171761 97122515283 3356122472557 10068367417671 30205102253013