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1480815138 = 2311611033571
BaseRepresentation
bin101100001000011…
…0111001000100010
310211012102012111010
41120100313020202
511013042041023
6402535001350
751460502205
oct13020671042
93735365433
101480815138
1169a977370
12353b09256
131a7a35b9a
1410094b93c
158a00a093
hex58437222

1480815138 has 64 divisors (see below), whose sum is σ = 3316644864. Its totient is φ = 436968000.

The previous prime is 1480815137. The next prime is 1480815151. The reversal of 1480815138 is 8315180841.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1480815096 and 1480815105.

It is not an unprimeable number, because it can be changed into a prime (1480815137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412893 + ... + 416463.

It is an arithmetic number, because the mean of its divisors is an integer number (51822576).

Almost surely, 21480815138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1480815138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658322432).

1480815138 is an abundant number, since it is smaller than the sum of its proper divisors (1835829726).

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

1480815138 is a wasteful number, since it uses less digits than its factorization.

1480815138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 1480815138 is about 38481.3609166828. The cubic root of 1480815138 is about 1139.8130241211.

Adding to 1480815138 its reverse (8315180841), we get a palindrome (9795995979).

It can be divided in two parts, 1480 and 815138, that added together give a palindrome (816618).

The spelling of 1480815138 in words is "one billion, four hundred eighty million, eight hundred fifteen thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 61 66 103 122 183 206 309 366 618 671 1133 1342 2013 2266 3399 3571 4026 6283 6798 7142 10713 12566 18849 21426 37698 39281 69113 78562 117843 138226 207339 217831 235686 367813 414678 435662 653493 735626 1103439 1306986 2206878 2396141 4045943 4792282 7188423 8091886 12137829 14376846 22436593 24275658 44873186 67309779 134619558 246802523 493605046 740407569 1480815138