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122979514 = 2721966047
BaseRepresentation
bin1110101010010…
…00010010111010
322120102000011211
413111020102322
5222440321024
620111513334
73022210600
oct725102272
9276360154
10122979514
1163467369
123522884a
131c62b158
1412493870
15abe3594
hex75484ba

122979514 has 24 divisors (see below), whose sum is σ = 225884160. Its totient is φ = 49930776.

The previous prime is 122979509. The next prime is 122979559. The reversal of 122979514 is 415979221.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31162 + ... + 34885.

It is an arithmetic number, because the mean of its divisors is an integer number (9411840).

Almost surely, 2122979514 is an apocalyptic number.

122979514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

122979514 is a deficient number, since it is larger than the sum of its proper divisors (102904646).

122979514 is a wasteful number, since it uses less digits than its factorization.

122979514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66082 (or 66075 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 122979514 is about 11089.6128877432. The cubic root of 122979514 is about 497.2913718299.

The spelling of 122979514 in words is "one hundred twenty-two million, nine hundred seventy-nine thousand, five hundred fourteen".

Divisors: 1 2 7 14 19 38 49 98 133 266 931 1862 66047 132094 462329 924658 1254893 2509786 3236303 6472606 8784251 17568502 61489757 122979514