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1026969380 = 225192702551
BaseRepresentation
bin111101001101100…
…100111100100100
32122120102110010222
4331031210330210
54100401010010
6245523303512
734310044553
oct7515447444
92576373128
101026969380
11487774328
12247b1ab98
131349c08b8
149a56bd9a
156025c355
hex3d364f24

1026969380 has 24 divisors (see below), whose sum is σ = 2270143680. Its totient is φ = 389167200.

The previous prime is 1026969341. The next prime is 1026969403. The reversal of 1026969380 is 839696201.

It is a super-2 number, since 2×10269693802 = 2109332214915168800, 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, 1350896 + ... + 1351655.

It is an arithmetic number, because the mean of its divisors is an integer number (94589320).

Almost surely, 21026969380 is an apocalyptic number.

1026969380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026969380 is an abundant number, since it is smaller than the sum of its proper divisors (1243174300).

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

1026969380 is a wasteful number, since it uses less digits than its factorization.

1026969380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702579 (or 2702577 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1026969380 is about 32046.3629761631. The cubic root of 1026969380 is about 1008.9101664709.

The spelling of 1026969380 in words is "one billion, twenty-six million, nine hundred sixty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 2702551 5405102 10810204 13512755 27025510 51348469 54051020 102696938 205393876 256742345 513484690 1026969380