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120426140 = 22521128537
BaseRepresentation
bin1110010110110…
…00111010011100
322101121021121102
413023120322130
5221312114030
615541052232
72661414422
oct713307234
9271537542
10120426140
1161a82a3a
12343b7078
131bc45b93
1411dcb112
15a88bc45
hex72d8e9c

120426140 has 24 divisors (see below), whose sum is σ = 254102352. Its totient is φ = 47940480.

The previous prime is 120426133. The next prime is 120426149. The reversal of 120426140 is 41624021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120426149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10049 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (10587598).

Almost surely, 2120426140 is an apocalyptic number.

120426140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120426140 is an abundant number, since it is smaller than the sum of its proper divisors (133676212).

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

120426140 is a wasteful number, since it uses less digits than its factorization.

120426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28757 (or 28755 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 120426140 is about 10973.8844535561. The cubic root of 120426140 is about 493.8255871034.

The spelling of 120426140 in words is "one hundred twenty million, four hundred twenty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 211 422 844 1055 2110 4220 28537 57074 114148 142685 285370 570740 6021307 12042614 24085228 30106535 60213070 120426140