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61020332 = 2219977639
BaseRepresentation
bin1110100011000…
…1100010101100
311020211011011022
43220301202230
5111110122312
610015513312
71340443562
oct350614254
9136734138
1061020332
113149852a
1218528838
13c846509
148165a32
155555172
hex3a318ac

61020332 has 12 divisors (see below), whose sum is σ = 106853040. Its totient is φ = 30490896.

The previous prime is 61020319. The next prime is 61020347. The reversal of 61020332 is 23302016.

It is a self number, because there is not a number n which added to its sum of digits gives 61020332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4169 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (8904420).

Almost surely, 261020332 is an apocalyptic number.

It is an amenable number.

61020332 is a deficient number, since it is larger than the sum of its proper divisors (45832708).

61020332 is a wasteful number, since it uses less digits than its factorization.

61020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640 (or 9638 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 61020332 is about 7811.5511903847. The cubic root of 61020332 is about 393.6934494413.

Adding to 61020332 its reverse (23302016), we get a palindrome (84322348).

The spelling of 61020332 in words is "sixty-one million, twenty thousand, three hundred thirty-two".

Divisors: 1 2 4 1997 3994 7639 7988 15278 30556 15255083 30510166 61020332