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61003025 = 524356747
BaseRepresentation
bin1110100010110…
…1010100010001
311020210021102022
43220231110101
5111104044100
610015301225
71340342246
oct350552421
9136707368
1061003025
1131486526
121851a815
13c83b685
14815d5cd
15554ee85
hex3a2d511

61003025 has 12 divisors (see below), whose sum is σ = 77404272. Its totient is φ = 47666640.

The previous prime is 61002967. The next prime is 61003027. The reversal of 61003025 is 52030016.

It is not a de Polignac number, because 61003025 - 212 = 60998929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61002994 and 61003012.

It is not an unprimeable number, because it can be changed into a prime (61003027) 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, 27299 + ... + 29448.

It is an arithmetic number, because the mean of its divisors is an integer number (6450356).

Almost surely, 261003025 is an apocalyptic number.

It is an amenable number.

61003025 is a deficient number, since it is larger than the sum of its proper divisors (16401247).

61003025 is a wasteful number, since it uses less digits than its factorization.

61003025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56800 (or 56795 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 61003025 is about 7810.4433292868. The cubic root of 61003025 is about 393.6562252540.

The spelling of 61003025 in words is "sixty-one million, three thousand, twenty-five".

Divisors: 1 5 25 43 215 1075 56747 283735 1418675 2440121 12200605 61003025