Search a number
-
+
31023013333011 = 3731257933595501
BaseRepresentation
bin1110000110111000110111…
…01100001000100000010011
311001211202211010202122000020
413003130123230020200103
513031240112403124021
6145551435305154523
76351224122265460
oct703343354104023
9131752733678006
1031023013333011
119980871292727
12359057448ba43
1314405c44848ab
14793743d92667
1538bea6ad57c6
hex1c371bb08813

31023013333011 has 64 divisors (see below), whose sum is σ = 48840435302400. Its totient is φ = 17140709520000.

The previous prime is 31023013333001. The next prime is 31023013333051. The reversal of 31023013333011 is 11033331032013.

It is not a de Polignac number, because 31023013333011 - 225 = 31022979778579 is a prime.

It is a super-2 number, since 2×310230133330112 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31023013333001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5639519761 + ... + 5639525261.

It is an arithmetic number, because the mean of its divisors is an integer number (763131801600).

Almost surely, 231023013333011 is an apocalyptic number.

31023013333011 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31023013333011 is a deficient number, since it is larger than the sum of its proper divisors (17817421969389).

31023013333011 is a wasteful number, since it uses less digits than its factorization.

31023013333011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 31023013333011 its reverse (11033331032013), we get a palindrome (42056344365024).

The spelling of 31023013333011 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-three thousand, eleven".

Divisors: 1 3 7 21 31 93 217 651 2579 3359 5501 7737 10077 16503 18053 23513 38507 54159 70539 79949 104129 115521 170531 239847 312387 511593 559643 728903 1193717 1678929 2186709 3581151 8662861 14187079 18477859 25988583 42561237 55433577 60640027 99309553 129345013 181920081 268548691 297928659 388035039 439799449 572813629 805646073 1319398347 1718440887 1879840837 3078596143 4009695403 5639522511 9235788429 12029086209 47654398361 142963195083 333580788527 1000742365581 1477286349191 4431859047573 10341004444337 31023013333011