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101054121 = 372687443
BaseRepresentation
bin1100000010111…
…11011010101001
321001011002012020
412001133122221
5201332212441
614005535053
72334642300
oct601373251
9231132166
10101054121
1152051503
1229a14489
1317c2254c
14d5c7437
158d11e66
hex605f6a9

101054121 has 12 divisors (see below), whose sum is σ = 156737232. Its totient is φ = 57745128.

The previous prime is 101054113. The next prime is 101054123. The reversal of 101054121 is 121450101.

It is a happy number.

It is not a de Polignac number, because 101054121 - 23 = 101054113 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 101054121.

It is not an unprimeable number, because it can be changed into a prime (101054123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343575 + ... + 343868.

It is an arithmetic number, because the mean of its divisors is an integer number (13061436).

Almost surely, 2101054121 is an apocalyptic number.

It is an amenable number.

101054121 is a deficient number, since it is larger than the sum of its proper divisors (55683111).

101054121 is an equidigital number, since it uses as much as digits as its factorization.

101054121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687460 (or 687453 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 101054121 is about 10052.5678808949. The cubic root of 101054121 is about 465.7841181091.

The spelling of 101054121 in words is "one hundred one million, fifty-four thousand, one hundred twenty-one".

Divisors: 1 3 7 21 49 147 687443 2062329 4812101 14436303 33684707 101054121