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106243880 = 23517156241
BaseRepresentation
bin1100101010100…
…10011100101000
321101220202012112
412111102130220
5204144301010
614313101452
72430025631
oct625223450
9241822175
10106243880
1154a76666
122b6b7888
131901b802
1410178888
1594d9a05
hex6552728

106243880 has 32 divisors (see below), whose sum is σ = 253112040. Its totient is φ = 39997440.

The previous prime is 106243871. The next prime is 106243919. The reversal of 106243880 is 88342601.

It can be written as a sum of positive squares in 4 ways, for example, as 61434244 + 44809636 = 7838^2 + 6694^2 .

It is a super-2 number, since 2×1062438802 = 22575524074908800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77441 + ... + 78800.

Almost surely, 2106243880 is an apocalyptic number.

106243880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106243880 is an abundant number, since it is smaller than the sum of its proper divisors (146868160).

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

106243880 is a wasteful number, since it uses less digits than its factorization.

106243880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156269 (or 156265 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 106243880 is about 10307.4671961641. The cubic root of 106243880 is about 473.6250246433.

The spelling of 106243880 in words is "one hundred six million, two hundred forty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 156241 312482 624964 781205 1249928 1562410 2656097 3124820 5312194 6249640 10624388 13280485 21248776 26560970 53121940 106243880