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61240475 = 522449619
BaseRepresentation
bin1110100110011…
…1010010011011
311021020100010202
43221213102123
5111134143400
610024332415
71342351442
oct351472233
9137210122
1061240475
113162896a
121861410b
13c8c278a
1481c1d59
15559a4d5
hex3a6749b

61240475 has 6 divisors (see below), whose sum is σ = 75938220. Its totient is φ = 48992360.

The previous prime is 61240453. The next prime is 61240537. The reversal of 61240475 is 57404216.

It is not a de Polignac number, because 61240475 - 28 = 61240219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224785 + ... + 1224834.

It is an arithmetic number, because the mean of its divisors is an integer number (12656370).

Almost surely, 261240475 is an apocalyptic number.

61240475 is a deficient number, since it is larger than the sum of its proper divisors (14697745).

61240475 is a wasteful number, since it uses less digits than its factorization.

61240475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449629 (or 2449624 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 61240475 is about 7825.6293676611. The cubic root of 61240475 is about 394.1663237416.

The spelling of 61240475 in words is "sixty-one million, two hundred forty thousand, four hundred seventy-five".

Divisors: 1 5 25 2449619 12248095 61240475