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1282057998400 = 2652283072
BaseRepresentation
bin10010101010000000100…
…111001001000001000000
311112120012211022100001101
4102222000213021001000
5132001123321422100
62420545212144144
7161424410115664
oct22520047110100
94476184270041
101282057998400
114547993538a3
1218857a768054
1393b88bc2a4a
14460a27388a4
1523538bc686a
hex12a809c9040

1282057998400 has 63 divisors (see below), whose sum is σ = 3154775410909. Its totient is φ = 512805082880.

The previous prime is 1282057998373. The next prime is 1282057998479. The reversal of 1282057998400 is 48997502821.

The square root of 1282057998400 is 1132280.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 461540879424 + 820517118976 = 679368^2 + 905824^2 .

It is a super-2 number, since 2×12820579984002 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45277047 + ... + 45305353.

Almost surely, 21282057998400 is an apocalyptic number.

1282057998400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1282057998400 is the 1132280-th square number.

It is an amenable number.

1282057998400 is an abundant number, since it is smaller than the sum of its proper divisors (1872717412509).

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

1282057998400 is an frugal number, since it uses more digits than its factorization.

1282057998400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56636 (or 28314 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 1282057998400 in words is "one trillion, two hundred eighty-two billion, fifty-seven million, nine hundred ninety-eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 28307 56614 113228 141535 226456 283070 452912 566140 707675 905824 1132280 1415350 1811648 2264560 2830700 4529120 5661400 9058240 11322800 22645600 45291200 801286249 1602572498 3205144996 4006431245 6410289992 8012862490 12820579984 16025724980 20032156225 25641159968 32051449960 40064312450 51282319936 64102899920 80128624900 128205799840 160257249800 256411599680 320514499600 641028999200 1282057998400