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120115155030 = 23513307987577
BaseRepresentation
bin110111111011101101…
…0111101000001010110
3102111001000212002111120
41233313122331001112
53431443434430110
6131102524344410
711451364654233
oct1576732750126
9374030762446
10120115155030
1146a38967872
121b3423a5106
13b433005c40
145b5676078a
1531d0150870
hex1bf76bd056

120115155030 has 32 divisors (see below), whose sum is σ = 310451478624. Its totient is φ = 29566807296.

The previous prime is 120115155023. The next prime is 120115155031. The reversal of 120115155030 is 30551511021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120115155031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153993399 + ... + 153994178.

It is an arithmetic number, because the mean of its divisors is an integer number (9701608707).

Almost surely, 2120115155030 is an apocalyptic number.

120115155030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120115155030 is an abundant number, since it is smaller than the sum of its proper divisors (190336323594).

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

120115155030 is a wasteful number, since it uses less digits than its factorization.

120115155030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307987600.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 120115155030 its reverse (30551511021), we get a palindrome (150666666051).

The spelling of 120115155030 in words is "one hundred twenty billion, one hundred fifteen million, one hundred fifty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 307987577 615975154 923962731 1539937885 1847925462 3079875770 4003838501 4619813655 8007677002 9239627310 12011515503 20019192505 24023031006 40038385010 60057577515 120115155030