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2190142735 = 51139820777
BaseRepresentation
bin1000001010001010…
…1110110100001111
312122122010210000121
42002202232310033
513441134031420
61001154205411
7105162622534
oct20242566417
95578123017
102190142735
11a24307720
12511583867
1328b98ca61
1416ac32d8b
15cc4212aa
hex828aed0f

2190142735 has 8 divisors (see below), whose sum is σ = 2867096016. Its totient is φ = 1592831040.

The previous prime is 2190142723. The next prime is 2190142741. The reversal of 2190142735 is 5372410912.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-2190142735 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2190142735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19910334 + ... + 19910443.

It is an arithmetic number, because the mean of its divisors is an integer number (358387002).

Almost surely, 22190142735 is an apocalyptic number.

2190142735 is a deficient number, since it is larger than the sum of its proper divisors (676953281).

2190142735 is a wasteful number, since it uses less digits than its factorization.

2190142735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39820793.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2190142735 is about 46798.9608324800. The cubic root of 2190142735 is about 1298.6460726463.

The spelling of 2190142735 in words is "two billion, one hundred ninety million, one hundred forty-two thousand, seven hundred thirty-five".

Divisors: 1 5 11 55 39820777 199103885 438028547 2190142735