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13422151 = 191096481
BaseRepresentation
bin110011001100…
…111001000111
3221020220201201
4303030321013
511414002101
61155403331
7222041431
oct63147107
927226651
1013422151
117638296
1245b3547
132a1c402
141ad5651
1512a1e01
hexccce47

13422151 has 8 divisors (see below), whose sum is σ = 14260400. Its totient is φ = 12597120.

The previous prime is 13422139. The next prime is 13422169. The reversal of 13422151 is 15122431.

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

It is a 7-Lehmer number, since φ(13422151) divides (13422151-1)7.

It is a cyclic number.

It is not a de Polignac number, because 13422151 - 27 = 13422023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (1782550).

Almost surely, 213422151 is an apocalyptic number.

13422151 is a deficient number, since it is larger than the sum of its proper divisors (838249).

13422151 is a wasteful number, since it uses less digits than its factorization.

13422151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609.

The product of its digits is 240, while the sum is 19.

The square root of 13422151 is about 3663.6253902385. The cubic root of 13422151 is about 237.6515804287.

Adding to 13422151 its reverse (15122431), we get a palindrome (28544582).

The spelling of 13422151 in words is "thirteen million, four hundred twenty-two thousand, one hundred fifty-one".

Divisors: 1 19 109 2071 6481 123139 706429 13422151