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61000093 = 711272019
BaseRepresentation
bin1110100010110…
…0100110011101
311020210010101201
43220230212131
5111104000333
610015235501
71340330560
oct350544635
9136703351
1061000093
1131484300
1218518b91
13c83a23b
14815c4d7
15554e17d
hex3a2c99d

61000093 has 12 divisors (see below), whose sum is σ = 76629280. Its totient is φ = 47531880.

The previous prime is 61000091. The next prime is 61000111. The reversal of 61000093 is 39000016.

It is not a de Polignac number, because 61000093 - 21 = 61000091 is a prime.

It is a super-2 number, since 2×610000932 = 7442022692017298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61000093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35163 + ... + 36856.

Almost surely, 261000093 is an apocalyptic number.

It is an amenable number.

61000093 is a deficient number, since it is larger than the sum of its proper divisors (15629187).

61000093 is a wasteful number, since it uses less digits than its factorization.

61000093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72048 (or 72037 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 61000093 is about 7810.2556296193. The cubic root of 61000093 is about 393.6499183616.

The spelling of 61000093 in words is "sixty-one million, ninety-three", and thus it is an aban number and an uban number.

Divisors: 1 7 11 77 121 847 72019 504133 792209 5545463 8714299 61000093