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30376161 = 331766179
BaseRepresentation
bin111001111100…
…0000011100001
32010011021021000
41303320003201
530234014121
63003022213
7516123144
oct163700341
963137230
1030376161
1116168072
12a20a969
1363a727a
14406a05b
152a00526
hex1cf80e1

30376161 has 16 divisors (see below), whose sum is σ = 47649600. Its totient is φ = 19059264.

The previous prime is 30376153. The next prime is 30376207. The reversal of 30376161 is 16167303.

It is not a de Polignac number, because 30376161 - 23 = 30376153 is a prime.

It is a super-2 number, since 2×303761612 = 1845422314195842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30376141) 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, 32631 + ... + 33548.

It is an arithmetic number, because the mean of its divisors is an integer number (2978100).

Almost surely, 230376161 is an apocalyptic number.

It is an amenable number.

30376161 is a deficient number, since it is larger than the sum of its proper divisors (17273439).

30376161 is a wasteful number, since it uses less digits than its factorization.

30376161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66205 (or 66199 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30376161 is about 5511.4572483146. The cubic root of 30376161 is about 312.0165486784.

The spelling of 30376161 in words is "thirty million, three hundred seventy-six thousand, one hundred sixty-one".

Divisors: 1 3 9 17 27 51 153 459 66179 198537 595611 1125043 1786833 3375129 10125387 30376161