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2945928100 = 225243168351
BaseRepresentation
bin1010111110010111…
…0100101110100100
321121022021122122011
42233211310232210
522013124144400
61204153244004
7133000655443
oct25745645644
97538248564
102945928100
111281999425
126a2703604
1337c43192b
141dd36cd5a
151239628ba
hexaf974ba4

2945928100 has 36 divisors (see below), whose sum is σ = 6407589888. Its totient is φ = 1175620000.

The previous prime is 2945928071. The next prime is 2945928103. The reversal of 2945928100 is 18295492.

It is a super-2 number, since 2×29459281002 = 17356984740739220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2945928103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8925 + ... + 77275.

It is an arithmetic number, because the mean of its divisors is an integer number (177988608).

Almost surely, 22945928100 is an apocalyptic number.

2945928100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2945928100 is an abundant number, since it is smaller than the sum of its proper divisors (3461661788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2945928100 is a wasteful number, since it uses less digits than its factorization.

2945928100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68796 (or 68789 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2945928100 is about 54276.4046340581. The cubic root of 2945928100 is about 1433.5319639395.

The spelling of 2945928100 in words is "two billion, nine hundred forty-five million, nine hundred twenty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 431 862 1724 2155 4310 8620 10775 21550 43100 68351 136702 273404 341755 683510 1367020 1708775 3417550 6835100 29459281 58918562 117837124 147296405 294592810 589185620 736482025 1472964050 2945928100