Search a number
-
+
74884706424025 = 521721018072
BaseRepresentation
bin10001000001101101110100…
…010100110101010011011001
3100211010220111221112101202021
4101001231310110311103121
534303402334321032100
6423133320442334441
721526145556124501
oct2101556424652331
9324126457471667
1074884706424025
11219514755995a3
1284951a87ba421
1332a279c9836a4
14146c620d86a01
1589cdca527a1a
hex441b745354d9

74884706424025 has 27 divisors (see below), whose sum is σ = 98641488081469. Its totient is φ = 56383225124480.

The previous prime is 74884706424023. The next prime is 74884706424089. The reversal of 74884706424025 is 52042460748847.

The square root of 74884706424025 is 8653595.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1751628427081 + 73133077996944 = 1323491^2 + 8551788^2 .

It is not a de Polignac number, because 74884706424025 - 21 = 74884706424023 is a prime.

It is a super-2 number, since 2×748847064240252 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74884706424023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 735504672 + ... + 735606478.

Almost surely, 274884706424025 is an apocalyptic number.

74884706424025 is the 8653595-th square number.

74884706424025 is the 4326798-th centered octagonal number.

It is an amenable number.

74884706424025 is a deficient number, since it is larger than the sum of its proper divisors (23756781657444).

74884706424025 is an frugal number, since it uses more digits than its factorization.

74884706424025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203658 (or 101829 counting only the distinct ones).

The product of its (nonzero) digits is 96337920, while the sum is 61.

The spelling of 74884706424025 in words is "seventy-four trillion, eight hundred eighty-four billion, seven hundred six million, four hundred twenty-four thousand, twenty-five".

Divisors: 1 5 17 25 85 289 425 1445 7225 101807 509035 1730719 2545175 8653595 29422223 43267975 147111115 735555575 10364665249 51823326245 176199309233 259116631225 880996546165 2995388256961 4404982730825 14976941284805 74884706424025