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19100096431 = 131469238187
BaseRepresentation
bin10001110010011101…
…000101011110101111
31211022010012102121221
4101302131011132233
5303104111041211
612435141204211
71244214066223
oct216235053657
954263172557
1019100096431
118111563169
123850700667
131a55116110
14cd2992783
1576bc5cc71
hex4727457af

19100096431 has 4 divisors (see below), whose sum is σ = 20569334632. Its totient is φ = 17630858232.

The previous prime is 19100096419. The next prime is 19100096443. The reversal of 19100096431 is 13469000191.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13469000191 = 36736700273.

It is an interprime number because it is at equal distance from previous prime (19100096419) and next prime (19100096443).

It is not a de Polignac number, because 19100096431 - 25 = 19100096399 is a prime.

It is a super-2 number, since 2×191000964312 (a number of 21 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 (19100096401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734619081 + ... + 734619106.

It is an arithmetic number, because the mean of its divisors is an integer number (5142333658).

Almost surely, 219100096431 is an apocalyptic number.

19100096431 is a deficient number, since it is larger than the sum of its proper divisors (1469238201).

19100096431 is a wasteful number, since it uses less digits than its factorization.

19100096431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469238200.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 19100096431 in words is "nineteen billion, one hundred million, ninety-six thousand, four hundred thirty-one".

Divisors: 1 13 1469238187 19100096431