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100642234205 = 5191877564407
BaseRepresentation
bin101110110111010111…
…1101001111101011101
3100121202221010012221202
41131232233221331131
53122103402443310
6114122344205245
710162002606302
oct1355657517535
9317687105852
10100642234205
1139755a10177
1217608a69825
13964b8a4a96
144c2a47d0a9
1529407eb3a5
hex176ebe9f5d

100642234205 has 16 divisors (see below), whose sum is σ = 127194986880. Its totient is φ = 76235447232.

The previous prime is 100642234181. The next prime is 100642234219. The reversal of 100642234205 is 502432246001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100642234205 is a prime.

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, 103889 + ... + 460518.

It is an arithmetic number, because the mean of its divisors is an integer number (7949686680).

Almost surely, 2100642234205 is an apocalyptic number.

It is an amenable number.

100642234205 is a deficient number, since it is larger than the sum of its proper divisors (26552752675).

100642234205 is a wasteful number, since it uses less digits than its factorization.

100642234205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566308.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 100642234205 in words is "one hundred billion, six hundred forty-two million, two hundred thirty-four thousand, two hundred five".

Divisors: 1 5 19 95 1877 9385 35663 178315 564407 2822035 10723733 53618665 1059391939 5296959695 20128446841 100642234205