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189679852944 = 243223374732933
BaseRepresentation
bin1011000010100111001…
…1001101110110010000
3200010121010002220011200
42300221303031312100
511101431020243234
6223045425311200
716463305101501
oct2605163156620
9603533086150
10189679852944
1173496371a4a
1230917495500
1314b6b1cb89a
149275622ba8
154e02427d99
hex2c29ccdd90

189679852944 has 240 divisors, whose sum is σ = 581012669952. Its totient is φ = 57589373952.

The previous prime is 189679852891. The next prime is 189679853057. The reversal of 189679852944 is 449258976981.

189679852944 is a `hidden beast` number, since 1 + 8 + 9 + 6 + 7 + 98 + 529 + 4 + 4 = 666.

It is a super-2 number, since 2×1896798529442 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5743102 + ... + 5776034.

Almost surely, 2189679852944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189679852944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290506334976).

189679852944 is an abundant number, since it is smaller than the sum of its proper divisors (391332817008).

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

189679852944 is a wasteful number, since it uses less digits than its factorization.

189679852944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33054 (or 33045 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 72.

The spelling of 189679852944 in words is "one hundred eighty-nine billion, six hundred seventy-nine million, eight hundred fifty-two thousand, nine hundred forty-four".