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61020316 = 2272179297
BaseRepresentation
bin1110100011000…
…1100010011100
311020211011010201
43220301202130
5111110122231
610015513244
71340443540
oct350614234
9136734121
1061020316
1131498515
1218528824
13c8464c6
148165a20
155555161
hex3a3189c

61020316 has 12 divisors (see below), whose sum is σ = 122040688. Its totient is φ = 26151552.

The previous prime is 61020299. The next prime is 61020319. The reversal of 61020316 is 61302016.

61020316 is an admirable number.

It is a super-3 number, since 3×610203163 (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61020293 and 61020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020319) 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, 1089621 + ... + 1089676.

Almost surely, 261020316 is an apocalyptic number.

It is an amenable number.

61020316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61020316 is a wasteful number, since it uses less digits than its factorization.

61020316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179308 (or 2179306 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 61020316 is about 7811.5501662602. The cubic root of 61020316 is about 393.6934150315.

The spelling of 61020316 in words is "sixty-one million, twenty thousand, three hundred sixteen".

Divisors: 1 2 4 7 14 28 2179297 4358594 8717188 15255079 30510158 61020316