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152189743 = 732084791
BaseRepresentation
bin10010001001000…
…11101100101111
3101121101001002011
421010203230233
5302430032433
623033542051
73525406606
oct1104435457
9347331064
10152189743
11789a8452
1242b74927
13256b7804
14162d8a3d
15d5633cd
hex9123b2f

152189743 has 4 divisors (see below), whose sum is σ = 154274608. Its totient is φ = 150104880.

The previous prime is 152189731. The next prime is 152189747. The reversal of 152189743 is 347981251.

152189743 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.

It is a cyclic number.

It is not a de Polignac number, because 152189743 - 25 = 152189711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152189696 and 152189705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152189747) 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, 1042323 + ... + 1042468.

It is an arithmetic number, because the mean of its divisors is an integer number (38568652).

Almost surely, 2152189743 is an apocalyptic number.

152189743 is a deficient number, since it is larger than the sum of its proper divisors (2084865).

152189743 is an equidigital number, since it uses as much as digits as its factorization.

152189743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084864.

The product of its digits is 60480, while the sum is 40.

The square root of 152189743 is about 12336.5207007487. The cubic root of 152189743 is about 533.9023034298.

The spelling of 152189743 in words is "one hundred fifty-two million, one hundred eighty-nine thousand, seven hundred forty-three".

Divisors: 1 73 2084791 152189743