Search a number
-
+
1302010021231 = 16728512734643
BaseRepresentation
bin10010111100100101110…
…110000100010101101111
311121110201022120002222221
4102330211312010111233
5132313004031134411
62434045105220211
7163032010401523
oct22744566042557
94543638502887
101302010021231
114621a7793967
12190408631667
1395a1866cc0a
14470364d1d83
1523d05617071
hex12f25d8456f

1302010021231 has 8 divisors (see below), whose sum is σ = 1310266387584. Its totient is φ = 1293759130200.

The previous prime is 1302010021189. The next prime is 1302010021259. The reversal of 1302010021231 is 1321200102031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1302010021231 is a prime.

It is a super-2 number, since 2×13020100212312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302010321231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891205 + ... + 1843438.

It is an arithmetic number, because the mean of its divisors is an integer number (163783298448).

Almost surely, 21302010021231 is an apocalyptic number.

1302010021231 is a deficient number, since it is larger than the sum of its proper divisors (8256366353).

1302010021231 is a wasteful number, since it uses less digits than its factorization.

1302010021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737661.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1302010021231 its reverse (1321200102031), we get a palindrome (2623210123262).

The spelling of 1302010021231 in words is "one trillion, three hundred two billion, ten million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 167 2851 476117 2734643 456685381 7796467193 1302010021231