Search a number
-
+
1072128498 = 23758743487
BaseRepresentation
bin111111111001110…
…110000111110010
32202201101202210220
4333321312013302
54143431102443
6254215233510
735365641030
oct7771660762
92681352726
101072128498
11500209011
1225b078896
1314117277c
14a2565550
15641cca83
hex3fe761f2

1072128498 has 32 divisors (see below), whose sum is σ = 2454810624. Its totient is φ = 305793552.

The previous prime is 1072128493. The next prime is 1072128571. The reversal of 1072128498 is 8948212701.

It is a super-2 number, since 2×10721284982 = 2298919032447472008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1072128493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2911 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (76712832).

Almost surely, 21072128498 is an apocalyptic number.

1072128498 is an abundant number, since it is smaller than the sum of its proper divisors (1382682126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1072128498 is a wasteful number, since it uses less digits than its factorization.

1072128498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44086.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1072128498 is about 32743.3733448464. The cubic root of 1072128498 is about 1023.4868803987.

The spelling of 1072128498 in words is "one billion, seventy-two million, one hundred twenty-eight thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 587 1174 1761 3522 4109 8218 12327 24654 43487 86974 130461 260922 304409 608818 913227 1826454 25526869 51053738 76580607 153161214 178688083 357376166 536064249 1072128498