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142906480 = 2451786331
BaseRepresentation
bin10001000010010…
…01010001110000
3100221220101211121
420201021101300
5243041001410
622102552024
73353453653
oct1041112160
9327811747
10142906480
1173737832
123ba38614
13237b7262
1414d9d89a
15c82c9da
hex8849470

142906480 has 20 divisors (see below), whose sum is σ = 332257752. Its totient is φ = 57162560.

The previous prime is 142906447. The next prime is 142906487. The reversal of 142906480 is 84609241.

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

It is a super-3 number, since 3×1429064803 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142906487) 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, 893086 + ... + 893245.

Almost surely, 2142906480 is an apocalyptic number.

142906480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142906480 is an abundant number, since it is smaller than the sum of its proper divisors (189351272).

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

142906480 is a wasteful number, since it uses less digits than its factorization.

142906480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786344 (or 1786338 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 142906480 is about 11954.3498359384. The cubic root of 142906480 is about 522.8181315443.

The spelling of 142906480 in words is "one hundred forty-two million, nine hundred six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1786331 3572662 7145324 8931655 14290648 17863310 28581296 35726620 71453240 142906480