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103072025 = 527739797
BaseRepresentation
bin1100010010011…
…00000100011001
321011221121020102
412021030010121
5202341301100
614121105145
72361045350
oct611140431
9234847212
10103072025
11531aa5a1
122a6281b5
131847ab84
14d990997
1590aecd5
hex624c119

103072025 has 24 divisors (see below), whose sum is σ = 146448960. Its totient is φ = 70493760.

The previous prime is 103072019. The next prime is 103072027. The reversal of 103072025 is 520270301.

It is not a de Polignac number, because 103072025 - 26 = 103071961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103071988 and 103072006.

It is not an unprimeable number, because it can be changed into a prime (103072027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128927 + ... + 129723.

It is an arithmetic number, because the mean of its divisors is an integer number (6102040).

Almost surely, 2103072025 is an apocalyptic number.

It is an amenable number.

103072025 is a deficient number, since it is larger than the sum of its proper divisors (43376935).

103072025 is an equidigital number, since it uses as much as digits as its factorization.

103072025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 103072025 is about 10152.4393620450. The cubic root of 103072025 is about 468.8640516552.

The spelling of 103072025 in words is "one hundred three million, seventy-two thousand, twenty-five".

Divisors: 1 5 7 25 35 175 739 797 3695 3985 5173 5579 18475 19925 25865 27895 129325 139475 588983 2944915 4122881 14724575 20614405 103072025