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90000800007 = 3791911988221
BaseRepresentation
bin101001111010001110…
…1110011100100000111
322121022022101100112020
41103310131303210013
52433310201100012
6105202405254223
76334206114636
oct1236435634407
9277268340466
1090000800007
1135195118158
1215539104373
138644042461
1444db06951d
15251b488a8c
hex14f4773907

90000800007 has 16 divisors (see below), whose sum is σ = 122156359680. Its totient is φ = 58930840800.

The previous prime is 90000799997. The next prime is 90000800063. The reversal of 90000800007 is 70000800009.

It is not a de Polignac number, because 90000800007 - 215 = 90000767239 is a prime.

It is a super-2 number, since 2×900008000072 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90000800007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90000807007) 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, 948844 + ... + 1039377.

It is an arithmetic number, because the mean of its divisors is an integer number (7634772480).

Almost surely, 290000800007 is an apocalyptic number.

90000800007 is a deficient number, since it is larger than the sum of its proper divisors (32155559673).

90000800007 is a wasteful number, since it uses less digits than its factorization.

90000800007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988494.

The product of its (nonzero) digits is 504, while the sum is 24.

The spelling of 90000800007 in words is "ninety billion, eight hundred thousand, seven".

Divisors: 1 3 79 191 237 573 15089 45267 1988221 5964663 157069459 379750211 471208377 1139250633 30000266669 90000800007