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102989922 = 2372452141
BaseRepresentation
bin1100010001110…
…00000001100010
321011210102121120
412020320001202
5202331134142
614115233110
72360254110
oct610700142
9234712546
10102989922
1153153942
122a5a8796
131844c6a9
14d96cab0
1590957ec
hex6238062

102989922 has 16 divisors (see below), whose sum is σ = 235405632. Its totient is φ = 29425680.

The previous prime is 102989917. The next prime is 102989941. The reversal of 102989922 is 229989201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2452141 = 102989922 / (1 + 0 + 2 + 9 + 8 + 9 + 9 + 2 + 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, 1226029 + ... + 1226112.

It is an arithmetic number, because the mean of its divisors is an integer number (14712852).

Almost surely, 2102989922 is an apocalyptic number.

102989922 is an abundant number, since it is smaller than the sum of its proper divisors (132415710).

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

102989922 is a wasteful number, since it uses less digits than its factorization.

102989922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452153.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 102989922 is about 10148.3950455232. The cubic root of 102989922 is about 468.7395258815.

It can be divided in two parts, 1029 and 89922, that added together give a triangular number (90951 = T426).

The spelling of 102989922 in words is "one hundred two million, nine hundred eighty-nine thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 2452141 4904282 7356423 14712846 17164987 34329974 51494961 102989922