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61240548 = 2235103379
BaseRepresentation
bin1110100110011…
…1010011100100
311021020100020110
43221213103210
5111134144143
610024333020
71342351605
oct351472344
9137210213
1061240548
1131628a26
1218614170
13c8c2815
1481c1dac
15559a533
hex3a674e4

61240548 has 12 divisors (see below), whose sum is σ = 142894640. Its totient is φ = 20413512.

The previous prime is 61240541. The next prime is 61240561. The reversal of 61240548 is 84504216.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (61240541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551678 + ... + 2551701.

Almost surely, 261240548 is an apocalyptic number.

It is an amenable number.

61240548 is an abundant number, since it is smaller than the sum of its proper divisors (81654092).

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

61240548 is a wasteful number, since it uses less digits than its factorization.

61240548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103386 (or 5103384 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 61240548 is about 7825.6340318213. The cubic root of 61240548 is about 394.1664803598.

The spelling of 61240548 in words is "sixty-one million, two hundred forty thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 5103379 10206758 15310137 20413516 30620274 61240548