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2942972420 = 225643228847
BaseRepresentation
bin1010111101101010…
…0011001000000100
321121002201111012112
42233122203020010
522011400104140
61204010040152
7132633565343
oct25732431004
97532644175
102942972420
11128025a813
126a1719058
1337b9384cb
141dcbddb5a
1512357bc65
hexaf6a3204

2942972420 has 24 divisors (see below), whose sum is σ = 6189880704. Its totient is φ = 1175353056.

The previous prime is 2942972419. The next prime is 2942972447. The reversal of 2942972420 is 242792492.

It is a super-2 number, since 2×29429724202 = 17322173329761312800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101564 + ... + 127283.

It is an arithmetic number, because the mean of its divisors is an integer number (257911696).

Almost surely, 22942972420 is an apocalyptic number.

2942972420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2942972420 is an abundant number, since it is smaller than the sum of its proper divisors (3246908284).

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

2942972420 is a wasteful number, since it uses less digits than its factorization.

2942972420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229499 (or 229497 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2942972420 is about 54249.1697632323. The cubic root of 2942972420 is about 1433.0523777184.

The spelling of 2942972420 in words is "two billion, nine hundred forty-two million, nine hundred seventy-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 643 1286 2572 3215 6430 12860 228847 457694 915388 1144235 2288470 4576940 147148621 294297242 588594484 735743105 1471486210 2942972420