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122971552930 = 2538177322109
BaseRepresentation
bin111001010000110101…
…1001111110010100010
3102202102002200010210101
41302201223033302202
54003321204143210
6132254203053014
711612230645012
oct1624153176242
9382362603711
10122971552930
1148174265896
121b9bab1116a
13b799a1b705
145d47c65c42
1532eaccaa3a
hex1ca1acfca2

122971552930 has 16 divisors (see below), whose sum is σ = 221355280440. Its totient is φ = 49187180032.

The previous prime is 122971552919. The next prime is 122971552967. The reversal of 122971552930 is 39255179221.

It is a Cunningham number, because it is equal to 3506732+1.

It can be written as a sum of positive squares in 4 ways, for example, as 68093336809 + 54878216121 = 260947^2 + 234261^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220716 + ... + 542824.

Almost surely, 2122971552930 is an apocalyptic number.

122971552930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122971552930 is a deficient number, since it is larger than the sum of its proper divisors (98383727510).

122971552930 is a wasteful number, since it uses less digits than its factorization.

122971552930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360293.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 122971552930 in words is "one hundred twenty-two billion, nine hundred seventy-one million, five hundred fifty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 38177 76354 190885 322109 381770 644218 1610545 3221090 12297155293 24594310586 61485776465 122971552930