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40157053 = 67599359
BaseRepresentation
bin1001100100101…
…1111101111101
32210120012010021
42121023331331
540240011203
63552412141
7665220646
oct231137575
983505107
1040157053
1120738652
1211547051
138420191
1454946cd
1537d35bd
hex264bf7d

40157053 has 4 divisors (see below), whose sum is σ = 40756480. Its totient is φ = 39557628.

The previous prime is 40157027. The next prime is 40157063. The reversal of 40157053 is 35075104.

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 a cyclic number.

It is not a de Polignac number, because 40157053 - 217 = 40025981 is a prime.

It is a super-2 number, since 2×401570532 = 3225177811289618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40157003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299613 + ... + 299746.

It is an arithmetic number, because the mean of its divisors is an integer number (10189120).

Almost surely, 240157053 is an apocalyptic number.

It is an amenable number.

40157053 is a deficient number, since it is larger than the sum of its proper divisors (599427).

40157053 is an equidigital number, since it uses as much as digits as its factorization.

40157053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599426.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 40157053 is about 6336.9592865980. The cubic root of 40157053 is about 342.4421995629.

The spelling of 40157053 in words is "forty million, one hundred fifty-seven thousand, fifty-three".

Divisors: 1 67 599359 40157053