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61030704 = 2437181639
BaseRepresentation
bin1110100011010…
…0000100110000
311020211200101110
43220310010300
5111110440304
610020033320
71340516040
oct350640460
9136750343
1061030704
11314a52a9
1218532840
13c84b157
148169720
155558289
hex3a34130

61030704 has 40 divisors (see below), whose sum is σ = 180186880. Its totient is φ = 17437248.

The previous prime is 61030699. The next prime is 61030709. The reversal of 61030704 is 40703016.

It is an interprime number because it is at equal distance from previous prime (61030699) and next prime (61030709).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (61030709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90484 + ... + 91155.

It is an arithmetic number, because the mean of its divisors is an integer number (4504672).

Almost surely, 261030704 is an apocalyptic number.

It is an amenable number.

61030704 is an abundant number, since it is smaller than the sum of its proper divisors (119156176).

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

61030704 is a wasteful number, since it uses less digits than its factorization.

61030704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181657 (or 181651 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 61030704 is about 7812.2150508035. The cubic root of 61030704 is about 393.7157543409.

The spelling of 61030704 in words is "sixty-one million, thirty thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 181639 363278 544917 726556 1089834 1271473 1453112 2179668 2542946 2906224 3814419 4359336 5085892 7628838 8718672 10171784 15257676 20343568 30515352 61030704