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153914493 = 351304831
BaseRepresentation
bin10010010110010…
…00110001111101
3101201121122222210
421023020301331
5303400230433
623134531033
73546152205
oct1113106175
9351548883
10153914493
1179976267
1243666a79
1325b6c885
1416627405
15d7a4463
hex92c8c7d

153914493 has 4 divisors (see below), whose sum is σ = 205219328. Its totient is φ = 102609660.

The previous prime is 153914483. The next prime is 153914503. The reversal of 153914493 is 394419351.

It is a happy number.

153914493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (153914483) and next prime (153914503).

It is not a de Polignac number, because 153914493 - 25 = 153914461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153914483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25652413 + ... + 25652418.

It is an arithmetic number, because the mean of its divisors is an integer number (51304832).

Almost surely, 2153914493 is an apocalyptic number.

It is an amenable number.

153914493 is a deficient number, since it is larger than the sum of its proper divisors (51304835).

153914493 is an equidigital number, since it uses as much as digits as its factorization.

153914493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51304834.

The product of its digits is 58320, while the sum is 39.

The square root of 153914493 is about 12406.2279924238. The cubic root of 153914493 is about 535.9116177971.

The spelling of 153914493 in words is "one hundred fifty-three million, nine hundred fourteen thousand, four hundred ninety-three".

Divisors: 1 3 51304831 153914493