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107188945919 = 11231512805773
BaseRepresentation
bin110001111010011110…
…1011000001111111111
3101020200011220122002222
41203310331120033333
53224010332232134
6121124131035555
710513146002336
oct1436475301777
9336604818088
10107188945919
1141505402620
121893543bbbb
13a152ccc3b3
14528bb22d1d
152bc5427a2e
hex18f4f583ff

107188945919 has 16 divisors (see below), whose sum is σ = 122825562624. Its totient is φ = 92590476000.

The previous prime is 107188945907. The next prime is 107188945939. The reversal of 107188945919 is 919549881701.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-107188945919 is a prime.

It is a super-2 number, since 2×1071889459192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107188945939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364684 + ... + 1441089.

It is an arithmetic number, because the mean of its divisors is an integer number (7676597664).

Almost surely, 2107188945919 is an apocalyptic number.

107188945919 is a deficient number, since it is larger than the sum of its proper divisors (15636616705).

107188945919 is a wasteful number, since it uses less digits than its factorization.

107188945919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805958.

The product of its (nonzero) digits is 6531840, while the sum is 62.

The spelling of 107188945919 in words is "one hundred seven billion, one hundred eighty-eight million, nine hundred forty-five thousand, nine hundred nineteen".

Divisors: 1 11 23 151 253 1661 3473 38203 2805773 30863503 64532779 423671723 709860569 4660388953 9744449629 107188945919