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31005009063368 = 23672293832
BaseRepresentation
bin1110000110010111010101…
…00011010010110111001000
311001210001100101112222010122
413003023222203102313020
513030441224310011433
6145535300551202412
76350016012441434
oct703135243226710
9131701311488118
1031005009063368
11997417235443a
123588b8a976408
13143b9b53baac2
14792916b739c4
1538b7a1187198
hex1c32ea8d2dc8

31005009063368 has 36 divisors (see below), whose sum is σ = 59017028439915. Its totient is φ = 15270604140528.

The previous prime is 31005009063361. The next prime is 31005009063407. The reversal of 31005009063368 is 86336090050013.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 15502504531684 + 15502504531684 = 3937322^2 + 3937322^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3937322.

It is a super-2 number, since 2×310050090633682 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31005009063361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1055187605 + ... + 1055216987.

Almost surely, 231005009063368 is an apocalyptic number.

It is an amenable number.

31005009063368 is a deficient number, since it is larger than the sum of its proper divisors (28012019376547).

31005009063368 is an frugal number, since it uses more digits than its factorization.

31005009063368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58906 (or 29452 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 31005009063368 in words is "thirty-one trillion, five billion, nine million, sixty-three thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 67 134 268 536 4489 8978 17956 29383 35912 58766 117532 235064 1968661 3937322 7874644 15749288 131900287 263800574 527601148 863360689 1055202296 1726721378 3453442756 6906885512 57845166163 115690332326 231380664652 462761329304 3875626132921 7751252265842 15502504531684 31005009063368