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31400110243141 = 3717341911707639
BaseRepresentation
bin1110010001110111010000…
…11010101011110101000101
311010011211011200010111010021
413020323220122223311011
513103424411210240031
6150441002252455141
76420404001162643
oct710735032536505
9133154150114107
1031400110243141
11a0067916a6682
12363167547a4b1
13146a02cb35043
147a7ab8492193
15396bc7963511
hex1c8ee86abd45

31400110243141 has 16 divisors (see below), whose sum is σ = 32512584585600. Its totient is φ = 30302364299328.

The previous prime is 31400110243081. The next prime is 31400110243171. The reversal of 31400110243141 is 14134201100413.

It is a cyclic number.

It is not a de Polignac number, because 31400110243141 - 225 = 31400076688709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400110243171) 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, 3171801 + ... + 8535838.

It is an arithmetic number, because the mean of its divisors is an integer number (2032036536600).

Almost surely, 231400110243141 is an apocalyptic number.

It is an amenable number.

31400110243141 is a deficient number, since it is larger than the sum of its proper divisors (1112474342459).

31400110243141 is a wasteful number, since it uses less digits than its factorization.

31400110243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11708268.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 31400110243141 its reverse (14134201100413), we get a palindrome (45534311343554).

The spelling of 31400110243141 in words is "thirty-one trillion, four hundred billion, one hundred ten million, two hundred forty-three thousand, one hundred forty-one".

Divisors: 1 37 173 419 6401 15503 72487 2682019 11707639 433182643 2025421547 4905500741 74940597239 181503527417 848651628193 31400110243141