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31445000054151 = 379199666730277
BaseRepresentation
bin1110010011001010111000…
…00011101110010110000111
311010100010001010020011022020
413021211130003232112013
513110143330003213101
6150513344505134223
76423553262241345
oct711453403562607
9133303033204266
1031445000054151
11a023827841042
12363a302a8a373
131471334c75aa8
147a9d3623a995
15397e53888136
hex1c995c0ee587

31445000054151 has 16 divisors (see below), whose sum is σ = 42670737792000. Its totient is φ = 20593964765088.

The previous prime is 31445000054147. The next prime is 31445000054263. The reversal of 31445000054151 is 15145000054413.

It is not a de Polignac number, because 31445000054151 - 22 = 31445000054147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445000054101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333317976 + ... + 333412301.

It is an arithmetic number, because the mean of its divisors is an integer number (2666921112000).

Almost surely, 231445000054151 is an apocalyptic number.

31445000054151 is a deficient number, since it is larger than the sum of its proper divisors (11225737737849).

31445000054151 is a wasteful number, since it uses less digits than its factorization.

31445000054151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666730558.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 31445000054151 in words is "thirty-one trillion, four hundred forty-five billion, fifty-four thousand, one hundred fifty-one".

Divisors: 1 3 79 199 237 597 15721 47163 666730277 2000190831 52671691883 132679325123 158015075649 398037975369 10481666684717 31445000054151