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89620929630 = 23551731471489
BaseRepresentation
bin101001101110111010…
…0101101110001011110
322120022211120221100000
41103131310231301132
52432020424222010
6105100555315130
76321614222061
oct1233564556136
9276284527300
1089620929630
113500a7509a1
1215451a4baa6
1385b342b29b
1444a28248d8
1524e7e4e7c0
hex14ddd2dc5e

89620929630 has 384 divisors, whose sum is σ = 269913047040. Its totient is φ = 21290065920.

The previous prime is 89620929617. The next prime is 89620929631. The reversal of 89620929630 is 3692902698.

89620929630 is a `hidden beast` number, since 8 + 9 + 620 + 9 + 2 + 9 + 6 + 3 + 0 = 666.

It is a super-2 number, since 2×896209296302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89620929631) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 60187926 + ... + 60189414.

It is an arithmetic number, because the mean of its divisors is an integer number (702898560).

Almost surely, 289620929630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89620929630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134956523520).

89620929630 is an abundant number, since it is smaller than the sum of its proper divisors (180292117410).

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

89620929630 is a wasteful number, since it uses less digits than its factorization.

89620929630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 89620929630 in words is "eighty-nine billion, six hundred twenty million, nine hundred twenty-nine thousand, six hundred thirty".