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107155220 = 22531401431
BaseRepresentation
bin1100110001100…
…00111100010100
321110122001022212
412120300330110
5204412431340
614344412552
72440542614
oct630607424
9243561285
10107155220
1155539337
122ba77158
131927a573
1410334a44
159619a65
hex6630f14

107155220 has 48 divisors (see below), whose sum is σ = 233404416. Its totient is φ = 41280000.

The previous prime is 107155211. The next prime is 107155273. The reversal of 107155220 is 22551701.

It is a happy number.

It is a super-2 number, since 2×1071552202 = 22964482346496800, which contains 22 as substring.

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, 248405 + ... + 248835.

It is an arithmetic number, because the mean of its divisors is an integer number (4862592).

Almost surely, 2107155220 is an apocalyptic number.

107155220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 107155220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116702208).

107155220 is an abundant number, since it is smaller than the sum of its proper divisors (126249196).

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

107155220 is a wasteful number, since it uses less digits than its factorization.

107155220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 107155220 is about 10351.5805556446. The cubic root of 107155220 is about 474.9753930004.

The spelling of 107155220 in words is "one hundred seven million, one hundred fifty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 401 431 620 802 862 1604 1724 2005 2155 4010 4310 8020 8620 12431 13361 24862 26722 49724 53444 62155 66805 124310 133610 172831 248620 267220 345662 691324 864155 1728310 3456620 5357761 10715522 21431044 26788805 53577610 107155220