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101220044202 = 23315373121931
BaseRepresentation
bin101111001000100101…
…1110100110110101010
3100200021012101000021000
41132101023310312222
53124244312403302
6114255544455430
710212220115454
oct1362113646652
9320235330230
10101220044202
1139a220923a2
121774a47a576
1397115014a4
144c830cb2d4
1529763d431c
hex17912f4daa

101220044202 has 32 divisors (see below), whose sum is σ = 224949908160. Its totient is φ = 33737543280.

The previous prime is 101220044197. The next prime is 101220044203. The reversal of 101220044202 is 202440022101.

101220044202 is a `hidden beast` number, since 1 + 0 + 1 + 220 + 0 + 442 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101220044203) 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, 769177 + ... + 891107.

It is an arithmetic number, because the mean of its divisors is an integer number (7029684630).

Almost surely, 2101220044202 is an apocalyptic number.

101220044202 is an abundant number, since it is smaller than the sum of its proper divisors (123729863958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101220044202 is a wasteful number, since it uses less digits than its factorization.

101220044202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137315 (or 137309 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 101220044202 its reverse (202440022101), we get a palindrome (303660066303).

The spelling of 101220044202 in words is "one hundred one billion, two hundred twenty million, forty-four thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 15373 30746 46119 92238 121931 138357 243862 276714 365793 415071 731586 830142 1097379 2194758 3292137 6584274 1874445263 3748890526 5623335789 11246671578 16870007367 33740014734 50610022101 101220044202