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142996860 = 223351737421
BaseRepresentation
bin10001000010111…
…11010101111100
3100222001222211000
420201133111330
5243101344420
622104530300
73354311316
oct1041372574
9328058730
10142996860
1173799726
123ba80990
1323819436
1414dc47b6
15c849690
hex885f57c

142996860 has 192 divisors, whose sum is σ = 484928640. Its totient is φ = 34836480.

The previous prime is 142996859. The next prime is 142996879. The reversal of 142996860 is 68699241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339450 + ... + 339870.

It is an arithmetic number, because the mean of its divisors is an integer number (2525670).

Almost surely, 2142996860 is an apocalyptic number.

142996860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142996860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242464320).

142996860 is an abundant number, since it is smaller than the sum of its proper divisors (341931780).

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

142996860 is a wasteful number, since it uses less digits than its factorization.

142996860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 142996860 is about 11958.1294523851. The cubic root of 142996860 is about 522.9283256255.

It can be divided in two parts, 1429 and 96860, that added together give a palindrome (98289).

The spelling of 142996860 in words is "one hundred forty-two million, nine hundred ninety-six thousand, eight hundred sixty".