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89700030 = 23257142381
BaseRepresentation
bin1010101100010…
…11011010111110
320020210020022100
411112023122332
5140430400110
612522325530
72136303060
oct526133276
9206706270
1089700030
11466a6a62
12260598a6
1315778554
14bcad730
157d1cbc0
hex558b6be

89700030 has 48 divisors (see below), whose sum is σ = 266539104. Its totient is φ = 20502720.

The previous prime is 89699999. The next prime is 89700059. The reversal of 89700030 is 3000798.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 89699967 and 89700003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70561 + ... + 71820.

It is an arithmetic number, because the mean of its divisors is an integer number (5552898).

Almost surely, 289700030 is an apocalyptic number.

89700030 is an abundant number, since it is smaller than the sum of its proper divisors (176839074).

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

89700030 is a wasteful number, since it uses less digits than its factorization.

89700030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142401 (or 142398 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 89700030 is about 9471.0099778218. The cubic root of 89700030 is about 447.6420364126.

The spelling of 89700030 in words is "eighty-nine million, seven hundred thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 142381 284762 427143 711905 854286 996667 1281429 1423810 1993334 2135715 2562858 2990001 4271430 4983335 5980002 6407145 8970003 9966670 12814290 14950005 17940006 29900010 44850015 89700030