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28903649204 = 2218787384623
BaseRepresentation
bin11010111010110010…
…101010111110110100
32202121100022111211002
4122322302222332310
5433143313233304
621140025302432
72042154651563
oct327262527664
982540274732
1028903649204
11112923a14a1
125727934a18
1329581c1411
1415829b9bda
15b4276431e
hex6bacaafb4

28903649204 has 12 divisors (see below), whose sum is σ = 50584209984. Its totient is φ = 14451017784.

The previous prime is 28903649189. The next prime is 28903649207. The reversal of 28903649204 is 40294630982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28903649207) 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, 117164 + ... + 267459.

It is an arithmetic number, because the mean of its divisors is an integer number (4215350832).

Almost surely, 228903649204 is an apocalyptic number.

It is an amenable number.

28903649204 is a deficient number, since it is larger than the sum of its proper divisors (21680560780).

28903649204 is a wasteful number, since it uses less digits than its factorization.

28903649204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403414 (or 403412 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 28903649204 in words is "twenty-eight billion, nine hundred three million, six hundred forty-nine thousand, two hundred four".

Divisors: 1 2 4 18787 37574 75148 384623 769246 1538492 7225912301 14451824602 28903649204