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87245043007 = 6779101163199
BaseRepresentation
bin101000101000000110…
…1011011010100111111
322100012020221101121011
41101100031123110333
52412134212334012
6104025124020051
76206004425653
oct1212015332477
9270166841534
1087245043007
1134000609131
1214aaa231627
1382c5136105
144319080a63
15240958d1a7
hex145035b53f

87245043007 has 16 divisors (see below), whose sum is σ = 90556416000. Its totient is φ = 84014330400.

The previous prime is 87245042981. The next prime is 87245043031. The reversal of 87245043007 is 70034054278.

It is a cyclic number.

It is not a de Polignac number, because 87245043007 - 27 = 87245042879 is a prime.

It is a super-2 number, since 2×872450430072 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87245043077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452994 + ... + 616192.

It is an arithmetic number, because the mean of its divisors is an integer number (5659776000).

Almost surely, 287245043007 is an apocalyptic number.

87245043007 is a deficient number, since it is larger than the sum of its proper divisors (3311372993).

87245043007 is a wasteful number, since it uses less digits than its factorization.

87245043007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163446.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 87245043007 in words is "eighty-seven billion, two hundred forty-five million, forty-three thousand, seven".

Divisors: 1 67 79 101 5293 6767 7979 163199 534593 10934333 12892721 16483099 863812307 1104367633 1302164821 87245043007