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1075157140 = 22573736409
BaseRepresentation
bin100000000010101…
…1001100010010100
32202221002122022211
41000011121202110
54200220012030
6254404203204
735433453631
oct10005314224
92687078284
101075157140
11501997522
12260099504
13141993175
14a2b13188
15645ca12a
hex40159894

1075157140 has 24 divisors (see below), whose sum is σ = 2288762280. Its totient is φ = 424171008.

The previous prime is 1075157131. The next prime is 1075157141. The reversal of 1075157140 is 417515701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 202663696 + 872493444 = 14236^2 + 29538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075157141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366745 + ... + 369664.

It is an arithmetic number, because the mean of its divisors is an integer number (95365095).

Almost surely, 21075157140 is an apocalyptic number.

1075157140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1075157140 is an abundant number, since it is smaller than the sum of its proper divisors (1213605140).

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

1075157140 is a wasteful number, since it uses less digits than its factorization.

1075157140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736491 (or 736489 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 1075157140 is about 32789.5888964775. The cubic root of 1075157140 is about 1024.4497193034.

The spelling of 1075157140 in words is "one billion, seventy-five million, one hundred fifty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 736409 1472818 2945636 3682045 7364090 14728180 53757857 107515714 215031428 268789285 537578570 1075157140