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728943612152 = 23723019615949
BaseRepresentation
bin10101001101110000110…
…11001101000011111000
32120200112100000020102012
422212320123031003320
543420334031042102
61314512211225052
7103443621320300
oct12467033150370
92520470006365
10728943612152
11261163735918
12b93358a8188
135397ba11072
14273d1324600
1513e650b2752
hexa9b86cd0f8

728943612152 has 48 divisors (see below), whose sum is σ = 1590444495000. Its totient is φ = 312300418752.

The previous prime is 728943612113. The next prime is 728943612157. The reversal of 728943612152 is 251216349827.

728943612152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7289436121522 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 728943612152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728943612157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 875474 + ... + 1491422.

Almost surely, 2728943612152 is an apocalyptic number.

It is an amenable number.

728943612152 is an abundant number, since it is smaller than the sum of its proper divisors (861500882848).

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

728943612152 is a wasteful number, since it uses less digits than its factorization.

728943612152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618988 (or 618977 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The spelling of 728943612152 in words is "seven hundred twenty-eight billion, nine hundred forty-three million, six hundred twelve thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 3019 6038 12076 21133 24152 42266 84532 147931 169064 295862 591724 615949 1183448 1231898 2463796 4311643 4927592 8623286 17246572 30181501 34493144 60363002 120726004 241452008 1859550031 3719100062 7438200124 13016850217 14876400248 26033700434 52067400868 91117951519 104134801736 182235903038 364471806076 728943612152