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311430242131010 = 25193161362819757
BaseRepresentation
bin100011011001111101000000…
…0111101000101110001000010
31111211200102220001002001211122
41012303322000331011301002
5311304433113441143020
63022205024513512242
7122412043502512532
oct10663720075056102
91454612801061748
10311430242131010
119025a907793432
122ab19325b72682
13104a0990748082
1456c94388074c2
152601036918125
hex11b3e80f45c42

311430242131010 has 16 divisors (see below), whose sum is σ = 563478966594936. Its totient is φ = 123926645572608.

The previous prime is 311430242130977. The next prime is 311430242131051. The reversal of 311430242131010 is 10131242034113.

It can be written as a sum of positive squares in 4 ways, for example, as 202981824514561 + 108448417616449 = 14247169^2 + 10413857^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80681407949 + ... + 80681411808.

Almost surely, 2311430242131010 is an apocalyptic number.

311430242131010 is a deficient number, since it is larger than the sum of its proper divisors (252048724463926).

311430242131010 is a wasteful number, since it uses less digits than its factorization.

311430242131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161362819957.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 311430242131010 its reverse (10131242034113), we get a palindrome (321561484165123).

The spelling of 311430242131010 in words is "three hundred eleven trillion, four hundred thirty billion, two hundred forty-two million, one hundred thirty-one thousand, ten".

Divisors: 1 2 5 10 193 386 965 1930 161362819757 322725639514 806814098785 1613628197570 31143024213101 62286048426202 155715121065505 311430242131010