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3100000004 = 22775000001
BaseRepresentation
bin1011100011000110…
…0011111100000100
322000001012022112222
42320301203330010
522322100000004
61231335431512
7136551364613
oct27061437404
98001168488
103100000004
111350961982
12726225598
133a532803a
142159d787a
151322487be
hexb8c63f04

3100000004 has 6 divisors (see below), whose sum is σ = 5425000014. Its totient is φ = 1550000000.

The previous prime is 3099999953. The next prime is 3100000027. The reversal of 3100000004 is 4000000013.

It can be written as a sum of positive squares in only one way, i.e., 2662353604 + 437646400 = 51598^2 + 20920^2 .

It is a super-2 number, since 2×31000000042 = 19220000049600000032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3099999937 and 3100000000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387499997 + ... + 387500004.

It is an arithmetic number, because the mean of its divisors is an integer number (904166669).

Almost surely, 23100000004 is an apocalyptic number.

It is an amenable number.

3100000004 is a deficient number, since it is larger than the sum of its proper divisors (2325000010).

3100000004 is a wasteful number, since it uses less digits than its factorization.

3100000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775000005 (or 775000003 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 3100000004 is about 55677.6436642213. The cubic root of 3100000004 is about 1458.0997364539.

Adding to 3100000004 its reverse (4000000013), we get a palindrome (7100000017).

Subtracting 3100000004 from its reverse (4000000013), we obtain a palindrome (900000009).

The spelling of 3100000004 in words is "three billion, one hundred million, four", and thus it is an aban number.

Divisors: 1 2 4 775000001 1550000002 3100000004