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2897023520 = 25543421079
BaseRepresentation
bin1010110010101101…
…0001001000100000
321110220021001011102
42230223101020200
521413114223040
61155245133532
7131535202466
oct25453211040
97426231142
102897023520
111257326716
1268a25a2a8
1337226b001
141d6a7c836
1511e502515
hexacad1220

2897023520 has 48 divisors (see below), whose sum is σ = 7003402560. Its totient is φ = 1131857664.

The previous prime is 2897023463. The next prime is 2897023541. The reversal of 2897023520 is 253207982.

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, 203660 + ... + 217419.

It is an arithmetic number, because the mean of its divisors is an integer number (145904220).

Almost surely, 22897023520 is an apocalyptic number.

2897023520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897023520 is an abundant number, since it is smaller than the sum of its proper divisors (4106379040).

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

2897023520 is a wasteful number, since it uses less digits than its factorization.

2897023520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421137 (or 421129 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2897023520 is about 53824.0050535075. The cubic root of 2897023520 is about 1425.5550963480. Note that the first 3 decimals are identical.

The spelling of 2897023520 in words is "two billion, eight hundred ninety-seven million, twenty-three thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 80 86 160 172 215 344 430 688 860 1376 1720 3440 6880 421079 842158 1684316 2105395 3368632 4210790 6737264 8421580 13474528 16843160 18106397 33686320 36212794 67372640 72425588 90531985 144851176 181063970 289702352 362127940 579404704 724255880 1448511760 2897023520