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122877090848 = 25619672
BaseRepresentation
bin111001001110000001…
…0111001110000100000
3102202011111220222011202
41302130002321300200
54003123013401343
6132240550300332
711610003016241
oct1623402716040
9382144828152
10122877090848
1148125a07056
121b9933576a8
13b7832967a5
145d394b6cc8
1532e286bdb8
hex1c9c0b9c20

122877090848 has 18 divisors (see below), whose sum is σ = 241918176591. Its totient is φ = 61437553952.

The previous prime is 122877090811. The next prime is 122877090859. The reversal of 122877090848 is 848090778221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 61438545424 + 61438545424 = 247868^2 + 247868^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=247868.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122877090793 and 122877090802.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1951961 + ... + 2013927.

Almost surely, 2122877090848 is an apocalyptic number.

It is an amenable number.

122877090848 is a deficient number, since it is larger than the sum of its proper divisors (119041085743).

122877090848 is an frugal number, since it uses more digits than its factorization.

122877090848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123944 (or 61969 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 122877090848 in words is "one hundred twenty-two billion, eight hundred seventy-seven million, ninety thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 32 61967 123934 247868 495736 991472 1982944 3839909089 7679818178 15359636356 30719272712 61438545424 122877090848