Search a number
-
+
89996970 = 2357428557
BaseRepresentation
bin1010101110100…
…11111010101010
320021100022122010
411113103322222
5141014400340
612532540350
72141650560
oct527237252
9207308563
1089996970
114688a068
12261816b6
131585075b
14bd49a30
157d7ab80
hex55d3eaa

89996970 has 32 divisors (see below), whose sum is σ = 246849408. Its totient is φ = 20570688.

The previous prime is 89996923. The next prime is 89996981. The reversal of 89996970 is 7969998.

It is a self number, because there is not a number n which added to its sum of digits gives 89996970.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214069 + ... + 214488.

It is an arithmetic number, because the mean of its divisors is an integer number (7714044).

Almost surely, 289996970 is an apocalyptic number.

89996970 is an abundant number, since it is smaller than the sum of its proper divisors (156852438).

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

89996970 is a wasteful number, since it uses less digits than its factorization.

89996970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428574.

The product of its (nonzero) digits is 2204496, while the sum is 57.

The square root of 89996970 is about 9486.6732841392. The cubic root of 89996970 is about 448.1354454673.

The spelling of 89996970 in words is "eighty-nine million, nine hundred ninety-six thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 428557 857114 1285671 2142785 2571342 2999899 4285570 5999798 6428355 8999697 12856710 14999495 17999394 29998990 44998485 89996970