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20435587130 = 257613476243
BaseRepresentation
bin10011000010000011…
…100101000000111010
31221202012011101110102
4103002003211000322
5313323002242010
613215445315402
71322261424140
oct230203450072
957665141412
1020435587130
1187373a1092
123b63a05b62
131c089c92ba
14dbc0b1590
157e910dba5
hex4c20e503a

20435587130 has 32 divisors (see below), whose sum is σ = 42107589504. Its totient is φ = 6995042496.

The previous prime is 20435587129. The next prime is 20435587153. The reversal of 20435587130 is 3178553402.

It is a super-2 number, since 2×204355871302 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195212 + ... + 281031.

It is an arithmetic number, because the mean of its divisors is an integer number (1315862172).

Almost surely, 220435587130 is an apocalyptic number.

20435587130 is an abundant number, since it is smaller than the sum of its proper divisors (21672002374).

20435587130 is a wasteful number, since it uses less digits than its factorization.

20435587130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476870.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 20435587130 in words is "twenty billion, four hundred thirty-five million, five hundred eighty-seven thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 613 1226 3065 4291 6130 8582 21455 42910 476243 952486 2381215 3333701 4762430 6667402 16668505 33337010 291936959 583873918 1459684795 2043558713 2919369590 4087117426 10217793565 20435587130