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103722278980 = 2255186113949
BaseRepresentation
bin110000010011001010…
…1000110000001000100
3100220201120202201002011
41200212111012001010
53144410400411410
6115352132224004
710331222552545
oct1404625060104
9326646681064
10103722278980
113aa96582421
121812846b004
139a1ca33b98
14503d5604cc
152a70e0218a
hex1826546044

103722278980 has 12 divisors (see below), whose sum is σ = 217816785900. Its totient is φ = 41488911584.

The previous prime is 103722278939. The next prime is 103722278981. The reversal of 103722278980 is 89872227301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42439296064 + 61282982916 = 206008^2 + 247554^2 .

It is a super-2 number, since 2×1037222789802 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103722278981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2593056955 + ... + 2593056994.

It is an arithmetic number, because the mean of its divisors is an integer number (18151398825).

Almost surely, 2103722278980 is an apocalyptic number.

103722278980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103722278980 is an abundant number, since it is smaller than the sum of its proper divisors (114094506920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103722278980 is a wasteful number, since it uses less digits than its factorization.

103722278980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186113958 (or 5186113956 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 103722278980 in words is "one hundred three billion, seven hundred twenty-two million, two hundred seventy-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 5186113949 10372227898 20744455796 25930569745 51861139490 103722278980