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142385211078 = 23119722240739
BaseRepresentation
bin1000010010011011010…
…0011110011011000110
3111121112001220011020020
42010212310132123012
54313101103223303
6145224425120010
713200303216315
oct2044664363306
9447461804206
10142385211078
1155426815570
1223718629006
1310571aa03b6
146c6a31c27c
153a85325a53
hex2126d1e6c6

142385211078 has 32 divisors (see below), whose sum is σ = 313861322880. Its totient is φ = 42702216960.

The previous prime is 142385211071. The next prime is 142385211079. The reversal of 142385211078 is 870112583241.

It is a super-2 number, since 2×1423852110782 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142385211071) 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, 11113968 + ... + 11126771.

It is an arithmetic number, because the mean of its divisors is an integer number (9808166340).

Almost surely, 2142385211078 is an apocalyptic number.

142385211078 is an abundant number, since it is smaller than the sum of its proper divisors (171476111802).

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

142385211078 is a wasteful number, since it uses less digits than its factorization.

142385211078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240852.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 142385211078 in words is "one hundred forty-two billion, three hundred eighty-five million, two hundred eleven thousand, seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 97 194 291 582 1067 2134 3201 6402 22240739 44481478 66722217 133444434 244648129 489296258 733944387 1467888774 2157351683 4314703366 6472055049 12944110098 23730868513 47461737026 71192605539 142385211078