Search a number
-
+
1206220038 = 231392815147
BaseRepresentation
bin100011111100101…
…0111010100000110
310010001201022211020
41013321113110012
54432243020123
6315405252010
741614462332
oct10771272406
93101638736
101206220038
11569974a71
12297b64006
13162b9168a
14b62ac7c2
1570d687e3
hex47e57506

1206220038 has 32 divisors (see below), whose sum is σ = 2438916480. Its totient is φ = 397682880.

The previous prime is 1206220009. The next prime is 1206220069. The reversal of 1206220038 is 8300226021.

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, 231781 + ... + 236927.

It is an arithmetic number, because the mean of its divisors is an integer number (76216140).

Almost surely, 21206220038 is an apocalyptic number.

1206220038 is an abundant number, since it is smaller than the sum of its proper divisors (1232696442).

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

1206220038 is a wasteful number, since it uses less digits than its factorization.

1206220038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1206220038 is about 34730.6786285555. The cubic root of 1206220038 is about 1064.4914550603.

Adding to 1206220038 its reverse (8300226021), we get a palindrome (9506446059).

The spelling of 1206220038 in words is "one billion, two hundred six million, two hundred twenty thousand, thirty-eight".

Divisors: 1 2 3 6 139 278 281 417 562 834 843 1686 5147 10294 15441 30882 39059 78118 117177 234354 715433 1430866 1446307 2146299 2892614 4292598 4338921 8677842 201036673 402073346 603110019 1206220038