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129418094590 = 2543439168543
BaseRepresentation
bin111100010000111101…
…0110110011111111110
3110101001100222101110121
41320201322312133332
54110022013011330
6135242010525154
712231046440061
oct1704172663776
9411040871417
10129418094590
114a98215aa74
12210b9a367ba
13c286472cc5
14639a0b28d8
153576c1c17a
hex1e21eb67fe

129418094590 has 32 divisors (see below), whose sum is σ = 238427836416. Its totient is φ = 50551095840.

The previous prime is 129418094579. The next prime is 129418094623. The reversal of 129418094590 is 95490814921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1853859 + ... + 1922401.

It is an arithmetic number, because the mean of its divisors is an integer number (7450869888).

Almost surely, 2129418094590 is an apocalyptic number.

129418094590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129418094590 is a deficient number, since it is larger than the sum of its proper divisors (109009741826).

129418094590 is a wasteful number, since it uses less digits than its factorization.

129418094590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72984.

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 129418094590 in words is "one hundred twenty-nine billion, four hundred eighteen million, ninety-four thousand, five hundred ninety".

Divisors: 1 2 5 10 43 86 215 430 4391 8782 21955 43910 68543 137086 188813 342715 377626 685430 944065 1888130 2947349 5894698 14736745 29473490 300972313 601944626 1504861565 3009723130 12941809459 25883618918 64709047295 129418094590