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89744745122 = 2192111492
BaseRepresentation
bin101001110010100110…
…1000010001010100010
322120122110120102020222
41103211031002022202
52432244123320442
6105121141203042
76324646514144
oct1234515021242
9276573512228
1089744745122
113507362934a
1215487400482
138602c8caa6
1444b5054c94
152503c5a8d2
hex14e53422a2

89744745122 has 18 divisors (see below), whose sum is σ = 142087874193. Its totient is φ = 42506855784.

The previous prime is 89744745113. The next prime is 89744745127. The reversal of 89744745122 is 22154744798.

It can be written as a sum of positive squares in 2 ways, for example, as 86160447961 + 3584297161 = 293531^2 + 59869^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=211831.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89744745127) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8044004 + ... + 8055152.

Almost surely, 289744745122 is an apocalyptic number.

89744745122 is a deficient number, since it is larger than the sum of its proper divisors (52343129071).

89744745122 is an frugal number, since it uses more digits than its factorization.

89744745122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22338 (or 11170 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 89744745122 in words is "eighty-nine billion, seven hundred forty-four million, seven hundred forty-five thousand, one hundred twenty-two".

Divisors: 1 2 19 38 361 722 11149 22298 211831 423662 4024789 8049578 124300201 248600402 2361703819 4723407638 44872372561 89744745122