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61323470 = 2513471719
BaseRepresentation
bin1110100111101…
…1100011001110
311021101112222122
43221323203032
5111144322340
610030212542
71343145425
oct351734316
9137345878
1061323470
113168525a
1218654152
13c9214a0
1482042bc
1555b4db5
hex3a7b8ce

61323470 has 16 divisors (see below), whose sum is σ = 118873440. Its totient is φ = 22642464.

The previous prime is 61323443. The next prime is 61323499. The reversal of 61323470 is 7432316.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235730 + ... + 235989.

It is an arithmetic number, because the mean of its divisors is an integer number (7429590).

Almost surely, 261323470 is an apocalyptic number.

61323470 is a deficient number, since it is larger than the sum of its proper divisors (57549970).

61323470 is a wasteful number, since it uses less digits than its factorization.

61323470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471739.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 61323470 is about 7830.9303406428. The cubic root of 61323470 is about 394.3443055251.

Adding to 61323470 its reverse (7432316), we get a palindrome (68755786).

The spelling of 61323470 in words is "sixty-one million, three hundred twenty-three thousand, four hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 471719 943438 2358595 4717190 6132347 12264694 30661735 61323470