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100023080 = 23511322129
BaseRepresentation
bin1011111011000…
…11101100101000
320222012200212112
411331203230220
5201101214310
613531501452
72323116323
oct575435450
9228180775
10100023080
1151507903
12295b7888
1317951171
14d3d97ba
158bab705
hex5f63b28

100023080 has 32 divisors (see below), whose sum is σ = 227053800. Its totient is φ = 39653376.

The previous prime is 100023043. The next prime is 100023101. The reversal of 100023080 is 80320001.

It can be written as a sum of positive squares in 4 ways, for example, as 77193796 + 22829284 = 8786^2 + 4778^2 .

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, 6545 + ... + 15584.

Almost surely, 2100023080 is an apocalyptic number.

100023080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100023080 is an abundant number, since it is smaller than the sum of its proper divisors (127030720).

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

100023080 is a wasteful number, since it uses less digits than its factorization.

100023080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22253 (or 22249 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 100023080 is about 10001.1539334219. The cubic root of 100023080 is about 464.1945899045.

Adding to 100023080 its reverse (80320001), we get a palindrome (180343081).

The spelling of 100023080 in words is "one hundred million, twenty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 113 226 452 565 904 1130 2260 4520 22129 44258 88516 110645 177032 221290 442580 885160 2500577 5001154 10002308 12502885 20004616 25005770 50011540 100023080