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15730190290 = 253119715209
BaseRepresentation
bin11101010011001011…
…11010011111010010
31111121021010110110101
432221211322133102
5224203412042130
611120520323014
71064544261043
oct165145723722
944537113411
1015730190290
116742311871
12307001346a
131638bc8c09
14a931ba8ca
15620e9c1ca
hex3a997a7d2

15730190290 has 32 divisors (see below), whose sum is σ = 28440097920. Its totient is φ = 6264182400.

The previous prime is 15730190261. The next prime is 15730190293. The reversal of 15730190290 is 9209103751.

It is a super-2 number, since 2×157301902902 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15730190293) 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, 3017206 + ... + 3022414.

It is an arithmetic number, because the mean of its divisors is an integer number (888753060).

Almost surely, 215730190290 is an apocalyptic number.

15730190290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15730190290 is a deficient number, since it is larger than the sum of its proper divisors (12709907630).

15730190290 is a wasteful number, since it uses less digits than its factorization.

15730190290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498.

The product of its (nonzero) digits is 17010, while the sum is 37.

The spelling of 15730190290 in words is "fifteen billion, seven hundred thirty million, one hundred ninety thousand, two hundred ninety".

Divisors: 1 2 5 10 311 622 971 1555 1942 3110 4855 5209 9710 10418 26045 52090 301981 603962 1509905 1619999 3019810 3239998 5057939 8099995 10115878 16199990 25289695 50579390 1573019029 3146038058 7865095145 15730190290