Search a number
-
+
1572130553 = 734583471
BaseRepresentation
bin101110110110100…
…1100111011111001
311001120020111200112
41131231030323321
511204431134203
6420000114105
753646614000
oct13555147371
94046214615
101572130553
11737476a54
1237a605935
131c0928786
1410cb1bc37
15930466d8
hex5db4cef9

1572130553 has 8 divisors (see below), whose sum is σ = 1833388800. Its totient is φ = 1347540180.

The previous prime is 1572130537. The next prime is 1572130583. The reversal of 1572130553 is 3550312751.

It is not a de Polignac number, because 1572130553 - 24 = 1572130537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1572130583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291393 + ... + 2292078.

It is an arithmetic number, because the mean of its divisors is an integer number (229173600).

Almost surely, 21572130553 is an apocalyptic number.

It is an amenable number.

1572130553 is a deficient number, since it is larger than the sum of its proper divisors (261258247).

1572130553 is an frugal number, since it uses more digits than its factorization.

1572130553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583492 (or 4583478 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 1572130553 is about 39650.1015509418. The cubic root of 1572130553 is about 1162.7763839397.

The spelling of 1572130553 in words is "one billion, five hundred seventy-two million, one hundred thirty thousand, five hundred fifty-three".

Divisors: 1 7 49 343 4583471 32084297 224590079 1572130553