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107220090 = 23522915607
BaseRepresentation
bin1100110010000…
…00110001111010
321110202100022110
412121000301322
5204422020330
614350033150
72441233005
oct631006172
9243670273
10107220090
115558304a
122baa87b6
13192a0c53
141035053c
15962ddb0
hex6640c7a

107220090 has 32 divisors (see below), whose sum is σ = 258468480. Its totient is φ = 28465344.

The previous prime is 107220079. The next prime is 107220107. The reversal of 107220090 is 90022701.

It is a happy number.

It is a super-2 number, since 2×1072200902 = 22992295399216200, which contains 22 as substring.

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, 934 + ... + 14673.

It is an arithmetic number, because the mean of its divisors is an integer number (8077140).

Almost surely, 2107220090 is an apocalyptic number.

107220090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

107220090 is an abundant number, since it is smaller than the sum of its proper divisors (151248390).

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

107220090 is a wasteful number, since it uses less digits than its factorization.

107220090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15846.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 107220090 is about 10354.7134195013. The cubic root of 107220090 is about 475.0712210843.

Adding to 107220090 its reverse (90022701), we get a palindrome (197242791).

The spelling of 107220090 in words is "one hundred seven million, two hundred twenty thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 229 458 687 1145 1374 2290 3435 6870 15607 31214 46821 78035 93642 156070 234105 468210 3574003 7148006 10722009 17870015 21444018 35740030 53610045 107220090