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142256662464 = 2637105845731
BaseRepresentation
bin1000010001111100101…
…0000110011111000000
3111121012010000012200110
42010133022012133000
54312320201144324
6145203553551320
713164152452110
oct2043712063700
9447163005613
10142256662464
11553701a5044
12236a1575540
1310551272427
146c57219040
153a78dd2329
hex211f2867c0

142256662464 has 56 divisors (see below), whose sum is σ = 430157054848. Its totient is φ = 40644760320.

The previous prime is 142256662409. The next prime is 142256662469. The reversal of 142256662464 is 464266652241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142256662469) 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, 52921522 + ... + 52924209.

Almost surely, 2142256662464 is an apocalyptic number.

142256662464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142256662464 is an abundant number, since it is smaller than the sum of its proper divisors (287900392384).

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

142256662464 is a wasteful number, since it uses less digits than its factorization.

142256662464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105845753 (or 105845743 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 48.

The spelling of 142256662464 in words is "one hundred forty-two billion, two hundred fifty-six million, six hundred sixty-two thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 105845731 211691462 317537193 423382924 635074386 740920117 846765848 1270148772 1481840234 1693531696 2222760351 2540297544 2963680468 3387063392 4445520702 5080595088 5927360936 6774126784 8891041404 10161190176 11854721872 17782082808 20322380352 23709443744 35564165616 47418887488 71128331232 142256662464