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1155070340 = 2255310110789
BaseRepresentation
bin100010011011000…
…1111100110000100
32222111110122121222
41010312033212010
54331144222330
6310341055512
740423636004
oct10466174604
92874418558
101155070340
11543009496
122829b7598
131553c2b98
14ad596004
156b6130e5
hex44d8f984

1155070340 has 48 divisors (see below), whose sum is σ = 2496115440. Its totient is φ = 448780800.

The previous prime is 1155070339. The next prime is 1155070349. The reversal of 1155070340 is 430705511.

It can be written as a sum of positive squares in 8 ways, for example, as 109453444 + 1045616896 = 10462^2 + 32336^2 .

It is not an unprimeable number, because it can be changed into a prime (1155070349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101666 + ... + 112454.

It is an arithmetic number, because the mean of its divisors is an integer number (52002405).

Almost surely, 21155070340 is an apocalyptic number.

1155070340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155070340 is an abundant number, since it is smaller than the sum of its proper divisors (1341045100).

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

1155070340 is a wasteful number, since it uses less digits than its factorization.

1155070340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952 (or 10950 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1155070340 is about 33986.3257796426. The cubic root of 1155070340 is about 1049.2270471580.

Adding to 1155070340 its reverse (430705511), we get a palindrome (1585775851).

The spelling of 1155070340 in words is "one billion, one hundred fifty-five million, seventy thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 53 101 106 202 212 265 404 505 530 1010 1060 2020 5353 10706 10789 21412 21578 26765 43156 53530 53945 107060 107890 215780 571817 1089689 1143634 2179378 2287268 2859085 4358756 5448445 5718170 10896890 11436340 21793780 57753517 115507034 231014068 288767585 577535170 1155070340