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152505494 = 21793131361
BaseRepresentation
bin10010001011100…
…00110010010110
3101121222002012122
421011300302112
5303020133434
623044415542
73531163301
oct1105606226
9347862178
10152505494
11790a36a9
12430a75b2
132579844b
141637bb38
15d5c6c2e
hex9170c96

152505494 has 16 divisors (see below), whose sum is σ = 230940720. Its totient is φ = 75528960.

The previous prime is 152505473. The next prime is 152505499. The reversal of 152505494 is 494505251.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152505499) 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, 111374 + ... + 112734.

It is an arithmetic number, because the mean of its divisors is an integer number (14433795).

Almost surely, 2152505494 is an apocalyptic number.

152505494 is a deficient number, since it is larger than the sum of its proper divisors (78435226).

152505494 is a wasteful number, since it uses less digits than its factorization.

152505494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 152505494 is about 12349.3114787829. The cubic root of 152505494 is about 534.2712808469.

The spelling of 152505494 in words is "one hundred fifty-two million, five hundred five thousand, four hundred ninety-four".

Divisors: 1 2 179 313 358 626 1361 2722 56027 112054 243619 425993 487238 851986 76252747 152505494