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525415342452 = 22371113231901777
BaseRepresentation
bin1111010010101010011…
…00011110000101110100
31212020012002122212210020
413221111030132011310
532102022311424302
61041212242125140
752650165502560
oct7512514360564
91766162585706
10525415342452
11192911299450
12859b46507b0
133a714738050
141b6048066a0
15da01ee9ebc
hex7a5531e174

525415342452 has 192 divisors, whose sum is σ = 1717625032704. Its totient is φ = 120496527360.

The previous prime is 525415342411. The next prime is 525415342469. The reversal of 525415342452 is 254243514525.

It is a super-2 number, since 2×5254153424522 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 674613 + ... + 1227164.

It is an arithmetic number, because the mean of its divisors is an integer number (8945963712).

Almost surely, 2525415342452 is an apocalyptic number.

525415342452 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

525415342452 is an abundant number, since it is smaller than the sum of its proper divisors (1192209690252).

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

525415342452 is a wasteful number, since it uses less digits than its factorization.

525415342452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901838 (or 1901836 counting only the distinct ones).

The product of its digits is 960000, while the sum is 42.

Adding to 525415342452 its reverse (254243514525), we get a palindrome (779658856977).

The spelling of 525415342452 in words is "five hundred twenty-five billion, four hundred fifteen million, three hundred forty-two thousand, four hundred fifty-two".