Search a number
-
+
30215328507 = 3471314892753
BaseRepresentation
bin11100001000111110…
…010101001011111011
32212222202110201120000
4130020332111023323
5443340111003012
621514123204043
72116523024520
oct341076251373
985882421500
1030215328507
11118a5846581
125a33076623
132b06b88410
141668c9b147
15bbc9aeddc
hex708f952fb

30215328507 has 80 divisors (see below), whose sum is σ = 55610089920. Its totient is φ = 15921266688.

The previous prime is 30215328469. The next prime is 30215328511. The reversal of 30215328507 is 70582351203.

It is a happy number.

It is not a de Polignac number, because 30215328507 - 28 = 30215328251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30215328547) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10974043 + ... + 10976795.

It is an arithmetic number, because the mean of its divisors is an integer number (695126124).

Almost surely, 230215328507 is an apocalyptic number.

30215328507 is a deficient number, since it is larger than the sum of its proper divisors (25394761413).

30215328507 is a wasteful number, since it uses less digits than its factorization.

30215328507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 30215328507 in words is "thirty billion, two hundred fifteen million, three hundred twenty-eight thousand, five hundred seven".

Divisors: 1 3 7 9 13 21 27 39 63 81 91 117 189 273 351 567 819 1053 1489 2457 2753 4467 7371 8259 10423 13401 19271 19357 24777 31269 35789 40203 57813 58071 74331 93807 107367 120609 135499 173439 174213 222993 250523 281421 322101 406497 520317 522639 751569 844263 966303 1219491 1560951 1567917 2254707 2898909 3658473 4099217 6764121 10975419 12297651 20292363 28694519 36892953 53289821 86083557 110678859 159869463 258250671 332036577 373028747 479608389 774752013 1119086241 1438825167 2324256039 3357258723 4316475501 10071776169 30215328507