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69990132 = 22320692819
BaseRepresentation
bin1000010101111…
…11011011110100
311212200212102010
410022333123310
5120404141012
610540044220
71506622602
oct412773364
9155625363
1069990132
1136564693
121b533670
13116671a4
14941c872
156227c3c
hex42bf6f4

69990132 has 24 divisors (see below), whose sum is σ = 163447200. Its totient is φ = 23310496.

The previous prime is 69990131. The next prime is 69990133. The reversal of 69990132 is 23109996.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (69990131) and next prime (69990133).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69990131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23419 + ... + 26237.

It is an arithmetic number, because the mean of its divisors is an integer number (6810300).

Almost surely, 269990132 is an apocalyptic number.

It is an amenable number.

69990132 is an abundant number, since it is smaller than the sum of its proper divisors (93457068).

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

69990132 is a wasteful number, since it uses less digits than its factorization.

69990132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 4893 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 69990132 is about 8366.0105187598. The cubic root of 69990132 is about 412.1091629549.

The spelling of 69990132 in words is "sixty-nine million, nine hundred ninety thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 2069 2819 4138 5638 6207 8276 8457 11276 12414 16914 24828 33828 5832511 11665022 17497533 23330044 34995066 69990132