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120424140031 = 13171946327997
BaseRepresentation
bin111000000100111010…
…1101000110011111111
3102111211120021011020111
41300021311220303333
53433112034440111
6131153323130451
711462136205156
oct1601165506377
9374746234214
10120424140031
1147087318878
121b409973a27
13b48202b5c0
145b857d259d
1531ec336a21
hex1c09d68cff

120424140031 has 16 divisors (see below), whose sum is σ = 137328174144. Its totient is φ = 104612765184.

The previous prime is 120424140017. The next prime is 120424140041. The reversal of 120424140031 is 130041424021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120424140031 - 221 = 120422042879 is a prime.

It is a super-2 number, since 2×1204241400312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120424139984 and 120424140011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120424140041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4287325 + ... + 4315321.

It is an arithmetic number, because the mean of its divisors is an integer number (8583010884).

Almost surely, 2120424140031 is an apocalyptic number.

120424140031 is a deficient number, since it is larger than the sum of its proper divisors (16904034113).

120424140031 is a wasteful number, since it uses less digits than its factorization.

120424140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47490.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 120424140031 its reverse (130041424021), we get a palindrome (250465564052).

The spelling of 120424140031 in words is "one hundred twenty billion, four hundred twenty-four million, one hundred forty thousand, thirty-one".

Divisors: 1 13 17 221 19463 27997 253019 330871 363961 475949 4301323 6187337 544905611 7083772943 9263395387 120424140031