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161524130 = 25192713137
BaseRepresentation
bin10011010000010…
…10100110100010
3102020221021110012
421220022212202
5312322233010
624010004522
74000634555
oct1150124642
9366837405
10161524130
11831a3519
1246116742
1327605411
141764869c
15e2a9005
hex9a0a9a2

161524130 has 32 divisors (see below), whose sum is σ = 307272960. Its totient is φ = 60963840.

The previous prime is 161524127. The next prime is 161524141. The reversal of 161524130 is 31425161.

161524130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161524096 and 161524105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49922 + ... + 53058.

It is an arithmetic number, because the mean of its divisors is an integer number (9602280).

Almost surely, 2161524130 is an apocalyptic number.

161524130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161524130 is a deficient number, since it is larger than the sum of its proper divisors (145748830).

161524130 is a wasteful number, since it uses less digits than its factorization.

161524130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 161524130 is about 12709.2143738313. The cubic root of 161524130 is about 544.6018807815.

Adding to 161524130 its reverse (31425161), we get a palindrome (192949291).

The spelling of 161524130 in words is "one hundred sixty-one million, five hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 271 542 1355 2710 3137 5149 6274 10298 15685 25745 31370 51490 59603 119206 298015 596030 850127 1700254 4250635 8501270 16152413 32304826 80762065 161524130