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142495752 = 23371077927
BaseRepresentation
bin10000111111001…
…01000000001000
3100221010112102110
420133211000020
5242434331002
622050102320
73350123340
oct1037450010
9327115373
10142495752
1173487193
123b87a9a0
13236a2319
1414cd3d20
15c79ae6c
hex87e5008

142495752 has 64 divisors (see below), whose sum is σ = 410987520. Its totient is φ = 40327488.

The previous prime is 142495739. The next prime is 142495777. The reversal of 142495752 is 257594241.

It is a self number, because there is not a number n which added to its sum of digits gives 142495752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14013 + ... + 21939.

It is an arithmetic number, because the mean of its divisors is an integer number (6421680).

Almost surely, 2142495752 is an apocalyptic number.

142495752 is a gapful number since it is divisible by the number (12) 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 142495752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205493760).

142495752 is an abundant number, since it is smaller than the sum of its proper divisors (268491768).

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

142495752 is a wasteful number, since it uses less digits than its factorization.

142495752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050 (or 8046 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 142495752 is about 11937.1584558470. The cubic root of 142495752 is about 522.3167731287.

The spelling of 142495752 in words is "one hundred forty-two million, four hundred ninety-five thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 107 168 214 321 428 642 749 856 1284 1498 2247 2568 2996 4494 5992 7927 8988 15854 17976 23781 31708 47562 55489 63416 95124 110978 166467 190248 221956 332934 443912 665868 848189 1331736 1696378 2544567 3392756 5089134 5937323 6785512 10178268 11874646 17811969 20356536 23749292 35623938 47498584 71247876 142495752