Search a number
-
+
142999757 = 1916214643
BaseRepresentation
bin10001000011000…
…00000011001101
3100222002010210022
420201200003031
5243101443012
622104551525
73354322625
oct1041400315
9328063708
10142999757
11737a091a
123ba825a5
132381a854
1414dc5885
15c84a472
hex88600cd

142999757 has 8 divisors (see below), whose sum is σ = 150651360. Its totient is φ = 135360720.

The previous prime is 142999723. The next prime is 142999781. The reversal of 142999757 is 757999241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142999757 - 26 = 142999693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142999699 and 142999708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142999057) 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, 28478 + ... + 33120.

It is an arithmetic number, because the mean of its divisors is an integer number (18831420).

Almost surely, 2142999757 is an apocalyptic number.

It is an amenable number.

142999757 is a deficient number, since it is larger than the sum of its proper divisors (7651603).

142999757 is a wasteful number, since it uses less digits than its factorization.

142999757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283.

The product of its digits is 1428840, while the sum is 53.

The square root of 142999757 is about 11958.2505827567. The cubic root of 142999757 is about 522.9318569691.

The spelling of 142999757 in words is "one hundred forty-two million, nine hundred ninety-nine thousand, seven hundred fifty-seven".

Divisors: 1 19 1621 4643 30799 88217 7526303 142999757