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190972299190 = 2519097229919
BaseRepresentation
bin1011000111011011010…
…1100000011110110110
3200020221012001222010011
42301312311200132312
511112102402033230
6223421555050434
716540320521401
oct2616665403666
9606835058104
10190972299190
1173a9997aa42
12310182a0a1a
1315015bc058a
149359138d38
154e7ab24e2a
hex2c76d607b6

190972299190 has 8 divisors (see below), whose sum is σ = 343750138560. Its totient is φ = 76388919672.

The previous prime is 190972299181. The next prime is 190972299197. The reversal of 190972299190 is 91992279091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1909722991902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190972299197) 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, 9548614950 + ... + 9548614969.

It is an arithmetic number, because the mean of its divisors is an integer number (42968767320).

Almost surely, 2190972299190 is an apocalyptic number.

190972299190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190972299190 is a deficient number, since it is larger than the sum of its proper divisors (152777839370).

190972299190 is a wasteful number, since it uses less digits than its factorization.

190972299190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19097229926.

The product of its (nonzero) digits is 1653372, while the sum is 58.

The spelling of 190972299190 in words is "one hundred ninety billion, nine hundred seventy-two million, two hundred ninety-nine thousand, one hundred ninety".

Divisors: 1 2 5 10 19097229919 38194459838 95486149595 190972299190