Search a number
-
+
157280448625 = 5323151362293
BaseRepresentation
bin1001001001111010100…
…1010011000001110001
3120000222010220121211221
42102132221103001301
510034102243324000
6200130441505041
714235361516666
oct2223651230161
9500863817757
10157280448625
116077a792a43
1226594aa2181
1311aa69c9021
147880671a6d
154157d4461a
hex249ea53071

157280448625 has 32 divisors (see below), whose sum is σ = 206177167872. Its totient is φ = 119556360000.

The previous prime is 157280448617. The next prime is 157280448653. The reversal of 157280448625 is 526844082751.

It is not a de Polignac number, because 157280448625 - 23 = 157280448617 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 252979 + ... + 615271.

It is an arithmetic number, because the mean of its divisors is an integer number (6443036496).

Almost surely, 2157280448625 is an apocalyptic number.

It is an amenable number.

157280448625 is a deficient number, since it is larger than the sum of its proper divisors (48896719247).

157280448625 is a wasteful number, since it uses less digits than its factorization.

157280448625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362482 (or 362472 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 157280448625 in words is "one hundred fifty-seven billion, two hundred eighty million, four hundred forty-eight thousand, six hundred twenty-five".

Divisors: 1 5 23 25 115 125 151 575 755 2875 3473 3775 17365 18875 86825 362293 434125 1811465 8332739 9057325 41663695 45286625 54706243 208318475 273531215 1041592375 1258243589 1367656075 6291217945 6838280375 31456089725 157280448625