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2530580500 = 225372103289
BaseRepresentation
bin1001011011010101…
…1001100000010100
320112100201210211201
42112311121200110
520140312034000
61055035042244
7116465402500
oct22665314024
96470653751
102530580500
1110894a0648
125a75a0384
13314378716
141a0131300
15ec26b96a
hex96d59814

2530580500 has 72 divisors (see below), whose sum is σ = 6429182760. Its totient is φ = 867619200.

The previous prime is 2530580489. The next prime is 2530580501. The reversal of 2530580500 is 50850352.

It can be written as a sum of positive squares in 4 ways, for example, as 633629584 + 1896950916 = 25172^2 + 43554^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530580501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27145 + ... + 76144.

It is an arithmetic number, because the mean of its divisors is an integer number (89294205).

Almost surely, 22530580500 is an apocalyptic number.

2530580500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530580500 is an abundant number, since it is smaller than the sum of its proper divisors (3898602260).

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

2530580500 is a wasteful number, since it uses less digits than its factorization.

2530580500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103322 (or 103303 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2530580500 is about 50304.8755092387. The cubic root of 2530580500 is about 1362.7202797342.

The spelling of 2530580500 in words is "two billion, five hundred thirty million, five hundred eighty thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 125 140 175 196 245 250 350 490 500 700 875 980 1225 1750 2450 3500 4900 6125 12250 24500 103289 206578 413156 516445 723023 1032890 1446046 2065780 2582225 2892092 3615115 5061161 5164450 7230230 10122322 10328900 12911125 14460460 18075575 20244644 25305805 25822250 36151150 50611610 51644500 72302300 90377875 101223220 126529025 180755750 253058050 361511500 506116100 632645125 1265290250 2530580500