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122152151 = 1194111801
BaseRepresentation
bin1110100011111…
…10010011010111
322111211222020202
413101332103113
5222232332101
620042051115
73012163502
oct721762327
9274758222
10122152151
1162a517a0
1234aa9a9b
131c3cb6a4
141231a139
15aacd36b
hex747e4d7

122152151 has 8 divisors (see below), whose sum is σ = 133409808. Its totient is φ = 110920000.

The previous prime is 122152117. The next prime is 122152153. The reversal of 122152151 is 151251221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122152151 is a prime.

It is a super-2 number, since 2×1221521512 = 29842295987853602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4451 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (16676226).

Almost surely, 2122152151 is an apocalyptic number.

122152151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122152151 is a deficient number, since it is larger than the sum of its proper divisors (11257657).

122152151 is a wasteful number, since it uses less digits than its factorization.

122152151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753.

The product of its digits is 200, while the sum is 20.

The square root of 122152151 is about 11052.2464232390. The cubic root of 122152151 is about 496.1736609536.

The spelling of 122152151 in words is "one hundred twenty-two million, one hundred fifty-two thousand, one hundred fifty-one".

Divisors: 1 11 941 10351 11801 129811 11104741 122152151