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31104240155454 = 2313417386378477
BaseRepresentation
bin1110001001010000001010…
…01011110111101100111110
311002010112110222100202000110
413010220011023313230332
513034102440434433304
6150053031330010450
76360131032011054
oct704500513675476
9132115428322013
1031104240155454
119a02263755654
1235a4263116a26
13144816a81273b
1479764ba401d4
1538e15cb3c289
hex1c4a052f7b3e

31104240155454 has 16 divisors (see below), whose sum is σ = 62213117013648. Its totient is φ = 10367307268032.

The previous prime is 31104240155449. The next prime is 31104240155497. The reversal of 31104240155454 is 45455104240113.

It is a super-2 number, since 2×311042401554542 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 193108737 + ... + 193269740.

It is an arithmetic number, because the mean of its divisors is an integer number (3888319813353).

Almost surely, 231104240155454 is an apocalyptic number.

31104240155454 is an abundant number, since it is smaller than the sum of its proper divisors (31108876858194).

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

31104240155454 is a wasteful number, since it uses less digits than its factorization.

31104240155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386391899.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 31104240155454 its reverse (45455104240113), we get a palindrome (76559344395567).

The spelling of 31104240155454 in words is "thirty-one trillion, one hundred four billion, two hundred forty million, one hundred fifty-five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 13417 26834 40251 80502 386378477 772756954 1159135431 2318270862 5184040025909 10368080051818 15552120077727 31104240155454