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61120115120 = 245764001439
BaseRepresentation
bin111000111011000010…
…101111000110110000
312211202120021112211102
4320323002233012300
52000133222140440
644024520103532
74262420256311
oct707302570660
9184676245742
1061120115120
1123a14791139
12ba19004ba8
1359c08317bc
142d5b54a608
1518cac5db15
hexe3b0af1b0

61120115120 has 20 divisors (see below), whose sum is σ = 142104267840. Its totient is φ = 24448046016.

The previous prime is 61120115101. The next prime is 61120115131. The reversal of 61120115120 is 2151102116.

61120115120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×611201151202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 61120115092 and 61120115101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382000640 + ... + 382000799.

It is an arithmetic number, because the mean of its divisors is an integer number (7105213392).

Almost surely, 261120115120 is an apocalyptic number.

It is an amenable number.

61120115120 is an abundant number, since it is smaller than the sum of its proper divisors (80984152720).

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

61120115120 is a wasteful number, since it uses less digits than its factorization.

61120115120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764001452 (or 764001446 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 61120115120 its reverse (2151102116), we get a palindrome (63271217236).

The spelling of 61120115120 in words is "sixty-one billion, one hundred twenty million, one hundred fifteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 764001439 1528002878 3056005756 3820007195 6112011512 7640014390 12224023024 15280028780 30560057560 61120115120