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100020692 = 2289280957
BaseRepresentation
bin1011111011000…
…11000111010100
320222012120121002
411331203013110
5201101130232
613531442432
72323106342
oct575430724
9228176532
10100020692
1151506032
12295b6418
1317950055
14d3d8992
158baab62
hex5f631d4

100020692 has 12 divisors (see below), whose sum is σ = 177003540. Its totient is φ = 49448256.

The previous prime is 100020667. The next prime is 100020703. The reversal of 100020692 is 296020001.

It can be written as a sum of positive squares in 2 ways, for example, as 10982596 + 89038096 = 3314^2 + 9436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140123 + ... + 140834.

It is an arithmetic number, because the mean of its divisors is an integer number (14750295).

Almost surely, 2100020692 is an apocalyptic number.

It is an amenable number.

100020692 is a deficient number, since it is larger than the sum of its proper divisors (76982848).

100020692 is a wasteful number, since it uses less digits than its factorization.

100020692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281050 (or 281048 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 100020692 is about 10001.0345464857. The cubic root of 100020692 is about 464.1908957388.

Adding to 100020692 its reverse (296020001), we get a palindrome (396040693).

The spelling of 100020692 in words is "one hundred million, twenty thousand, six hundred ninety-two".

Divisors: 1 2 4 89 178 356 280957 561914 1123828 25005173 50010346 100020692