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164076761 = 1997127701
BaseRepresentation
bin10011100011110…
…01110011011001
3102102201222000002
421301321303121
5314000424021
624140422345
74031425622
oct1161716331
9372658002
10164076761
1184687332
1246b479b5
1327cba254
1417b10a49
15e61050b
hex9c79cd9

164076761 has 16 divisors (see below), whose sum is σ = 176117760. Its totient is φ = 152409600.

The previous prime is 164076749. The next prime is 164076797. The reversal of 164076761 is 167670461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164076761 is a prime.

It is a super-2 number, since 2×1640767612 = 53842367000502242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164076161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233711 + ... + 234411.

It is an arithmetic number, because the mean of its divisors is an integer number (11007360).

Almost surely, 2164076761 is an apocalyptic number.

It is an amenable number.

164076761 is a deficient number, since it is larger than the sum of its proper divisors (12040999).

164076761 is a wasteful number, since it uses less digits than its factorization.

164076761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 164076761 is about 12809.2451377901. The cubic root of 164076761 is about 547.4557539496.

The spelling of 164076761 in words is "one hundred sixty-four million, seventy-six thousand, seven hundred sixty-one".

Divisors: 1 19 97 127 701 1843 2413 12319 13319 67997 89027 234061 1291943 1691513 8635619 164076761