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142811416 = 231123371907
BaseRepresentation
bin10001000001100…
…10000100011000
3100221201120102201
420200302010120
5243024431131
622100535544
73352606546
oct1040620430
9327646381
10142811416
1173682370
123b9b15b4
1323782bc7
1414d76d96
15c80e761
hex8832118

142811416 has 64 divisors (see below), whose sum is σ = 313217280. Its totient is φ = 60382080.

The previous prime is 142811411. The next prime is 142811443. The reversal of 142811416 is 614118241.

142811416 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142811411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73935 + ... + 75841.

It is an arithmetic number, because the mean of its divisors is an integer number (4894020).

Almost surely, 2142811416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142811416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156608640).

142811416 is an abundant number, since it is smaller than the sum of its proper divisors (170405864).

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

142811416 is a wasteful number, since it uses less digits than its factorization.

142811416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1980 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 142811416 is about 11950.3730485705. The cubic root of 142811416 is about 522.7021764394.

Adding to 142811416 its reverse (614118241), we get a palindrome (756929657).

The spelling of 142811416 in words is "one hundred forty-two million, eight hundred eleven thousand, four hundred sixteen".

Divisors: 1 2 4 8 11 22 23 37 44 46 74 88 92 148 184 253 296 407 506 814 851 1012 1628 1702 1907 2024 3256 3404 3814 6808 7628 9361 15256 18722 20977 37444 41954 43861 70559 74888 83908 87722 141118 167816 175444 282236 350888 482471 564472 776149 964942 1552298 1622857 1929884 3104596 3245714 3859768 6209192 6491428 12982856 17851427 35702854 71405708 142811416