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140504052 = 223131098263
BaseRepresentation
bin10000101111111…
…10101111110100
3100210101100022210
420113332233310
5241432112202
621535253420
73324156543
oct1027765764
9323340283
10140504052
1172346857
123b07a270
13231558c0
141493615a
15c505c6c
hex85febf4

140504052 has 48 divisors (see below), whose sum is σ = 356343680. Its totient is φ = 42830208.

The previous prime is 140504047. The next prime is 140504083. The reversal of 140504052 is 250405041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12873 + ... + 21135.

Almost surely, 2140504052 is an apocalyptic number.

140504052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140504052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178171840).

140504052 is an abundant number, since it is smaller than the sum of its proper divisors (215839628).

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

140504052 is a wasteful number, since it uses less digits than its factorization.

140504052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392 (or 8390 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 140504052 is about 11853.4405132012. The cubic root of 140504052 is about 519.8718273842.

Adding to 140504052 its reverse (250405041), we get a palindrome (390909093).

The spelling of 140504052 in words is "one hundred forty million, five hundred four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 109 156 218 327 436 654 1308 1417 2834 4251 5668 8263 8502 16526 17004 24789 33052 49578 99156 107419 214838 322257 429676 644514 900667 1289028 1801334 2702001 3602668 5404002 10808004 11708671 23417342 35126013 46834684 70252026 140504052