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152605078609 = 3906472
BaseRepresentation
bin1000111000011111111…
…0001011010001010001
3112120220022101012220111
42032013332023101101
510000013400003414
6154034504241321
714011460523424
oct2160776132121
9476808335814
10152605078609
11597a0652285
12256ab170241
13115101acba9
1475597559bb
153e826648c4
hex2387f8b451

152605078609 has 3 divisors (see below), whose sum is σ = 152605469257. Its totient is φ = 152604687962.

The previous prime is 152605078607. The next prime is 152605078643. The reversal of 152605078609 is 906870506251.

The square root of 152605078609 is 390647.

It is a perfect power (a square), and thus also a powerful number.

152605078609 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 brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 152605078609 - 21 = 152605078607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152605078603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 195324 + ... + 585970.

Almost surely, 2152605078609 is an apocalyptic number.

152605078609 is the 390647-th square number.

152605078609 is the 195324-th centered octagonal number.

It is an amenable number.

152605078609 is a deficient number, since it is larger than the sum of its proper divisors (390648).

152605078609 is an frugal number, since it uses more digits than its factorization.

152605078609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781294 (or 390647 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

Multiplying 152605078609 by its sum of digits (49), we get a square (7477648851841 = 27345292).

The spelling of 152605078609 in words is "one hundred fifty-two billion, six hundred five million, seventy-eight thousand, six hundred nine".

Divisors: 1 390647 152605078609