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730374740 = 2251710092129
BaseRepresentation
bin101011100010001…
…010001001010100
31212220022212210022
4223202022021110
52443433442430
6200250244312
724046040264
oct5342121124
91786285708
10730374740
11345306397
12184726698
13b8415b04
146d0037a4
15441c24e5
hex2b88a254

730374740 has 48 divisors (see below), whose sum is σ = 1626382800. Its totient is φ = 274563072.

The previous prime is 730374739. The next prime is 730374781. The reversal of 730374740 is 47473037.

It can be written as a sum of positive squares in 8 ways, for example, as 16630084 + 713744656 = 4078^2 + 26716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 730374740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341996 + ... + 344124.

It is an arithmetic number, because the mean of its divisors is an integer number (33882975).

Almost surely, 2730374740 is an apocalyptic number.

It is an amenable number.

730374740 is an abundant number, since it is smaller than the sum of its proper divisors (896008060).

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

730374740 is a wasteful number, since it uses less digits than its factorization.

730374740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 730374740 is about 27025.4461572793. The cubic root of 730374740 is about 900.5653813777.

It can be divided in two parts, 73037 and 4740, that added together give a palindrome (77777).

The spelling of 730374740 in words is "seven hundred thirty million, three hundred seventy-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 1009 2018 2129 4036 4258 5045 8516 10090 10645 17153 20180 21290 34306 36193 42580 68612 72386 85765 144772 171530 180965 343060 361930 723860 2148161 4296322 8592644 10740805 21481610 36518737 42963220 73037474 146074948 182593685 365187370 730374740