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122540054 = 2713673297
BaseRepresentation
bin1110100110111…
…01000000010110
322112120200100112
413103131000112
5222332240204
620054243022
73015400430
oct723350026
9275520315
10122540054
116319717a
1235056472
131c506110
14123bb650
15ab5826e
hex74dd016

122540054 has 16 divisors (see below), whose sum is σ = 226228128. Its totient is φ = 48477312.

The previous prime is 122540053. The next prime is 122540069. The reversal of 122540054 is 450045221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122540053) 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, 336467 + ... + 336830.

It is an arithmetic number, because the mean of its divisors is an integer number (14139258).

Almost surely, 2122540054 is an apocalyptic number.

122540054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

122540054 is a deficient number, since it is larger than the sum of its proper divisors (103688074).

122540054 is a wasteful number, since it uses less digits than its factorization.

122540054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673319.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 122540054 is about 11069.7811179806. The cubic root of 122540054 is about 496.6983177783.

Adding to 122540054 its reverse (450045221), we get a palindrome (572585275).

The spelling of 122540054 in words is "one hundred twenty-two million, five hundred forty thousand, fifty-four".

Divisors: 1 2 7 13 14 26 91 182 673297 1346594 4713079 8752861 9426158 17505722 61270027 122540054