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147936390625 = 561721812
BaseRepresentation
bin1000100111000110110…
…0100010110111100001
3112010211221102021222201
42021301230202313201
54410433204000000
6151543330133201
713455000400252
oct2116154426741
9463757367881
10147936390625
1157815265961
1224807721201
1310c47b9331a
147235698b29
153cac85496a
hex2271b22de1

147936390625 has 63 divisors (see below), whose sum is σ = 197526788031. Its totient is φ = 110772000000.

The previous prime is 147936390617. The next prime is 147936390629. The reversal of 147936390625 is 526093639741.

The square root of 147936390625 is 384625.

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

It can be written as a sum of positive squares in 31 ways, for example, as 93064609 + 147843326016 = 9647^2 + 384504^2 .

It is not a de Polignac number, because 147936390625 - 23 = 147936390617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147936390629) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 817328035 + ... + 817328215.

Almost surely, 2147936390625 is an apocalyptic number.

147936390625 is the 384625-th square number.

147936390625 is the 192313-rd centered octagonal number.

It is an amenable number.

147936390625 is a deficient number, since it is larger than the sum of its proper divisors (49590397406).

147936390625 is an frugal number, since it uses more digits than its factorization.

147936390625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 147936390625 in words is "one hundred forty-seven billion, nine hundred thirty-six million, three hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 17 25 85 125 181 289 425 625 905 1445 2125 3077 3125 4525 7225 10625 15385 15625 22625 32761 36125 52309 53125 76925 113125 163805 180625 261545 265625 384625 556937 565625 819025 903125 1307725 1923125 2784685 2828125 4095125 4515625 6538625 9467929 9615625 13923425 20475625 32693125 47339645 48078125 69617125 102378125 163465625 236698225 348085625 511890625 817328125 1183491125 1740428125 5917455625 8702140625 29587278125 147936390625