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20313003002 = 210156501501
BaseRepresentation
bin10010111010101111…
…111101001111111010
31221102122111110122112
4102322233331033322
5313100112044002
613155350052322
71316242451045
oct227257751772
957378443575
1020313003002
118684184896
123b2a94a0a2
131bb94a9106
14da9ac1c5c
157dd497852
hex4babfd3fa

20313003002 has 4 divisors (see below), whose sum is σ = 30469504506. Its totient is φ = 10156501500.

The previous prime is 20313002987. The next prime is 20313003013. The reversal of 20313003002 is 20030031302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19477272721 + 835730281 = 139561^2 + 28909^2 .

It is a super-2 number, since 2×203130030022 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078250749 + ... + 5078250752.

Almost surely, 220313003002 is an apocalyptic number.

20313003002 is a deficient number, since it is larger than the sum of its proper divisors (10156501504).

20313003002 is a wasteful number, since it uses less digits than its factorization.

20313003002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156501503.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20313003002 its reverse (20030031302), we get a palindrome (40343034304).

It can be divided in two parts, 2031300 and 3002, that added together give a palindrome (2034302).

The spelling of 20313003002 in words is "twenty billion, three hundred thirteen million, three thousand, two".

Divisors: 1 2 10156501501 20313003002