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401231111330 = 257371091421243
BaseRepresentation
bin1011101011010110011…
…11001110010010100010
31102100122111010022020202
411311223033032102202
523033210131030310
6504153435105202
740662611113610
oct5655317162242
91370574108222
10401231111330
11145185558585
12659175a2202
132bab370659a
14155c38b06b0
15a684a2c3a5
hex5d6b3ce4a2

401231111330 has 64 divisors (see below), whose sum is σ = 855475188480. Its totient is φ = 132618933504.

The previous prime is 401231111279. The next prime is 401231111339. The reversal of 401231111330 is 33111132104.

It is not an unprimeable number, because it can be changed into a prime (401231111339) 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, 428312 + ... + 992931.

It is an arithmetic number, because the mean of its divisors is an integer number (13366799820).

Almost surely, 2401231111330 is an apocalyptic number.

401231111330 is an abundant number, since it is smaller than the sum of its proper divisors (454244077150).

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

401231111330 is a wasteful number, since it uses less digits than its factorization.

401231111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421403.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 401231111330 its reverse (33111132104), we get a palindrome (434342243434).

The spelling of 401231111330 in words is "four hundred one billion, two hundred thirty-one million, one hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 37 70 74 109 185 218 259 370 518 545 763 1090 1295 1526 2590 3815 4033 7630 8066 20165 28231 40330 56462 141155 282310 1421243 2842486 7106215 9948701 14212430 19897402 49743505 52585991 99487010 105171982 154915487 262929955 309830974 368101937 525859910 736203874 774577435 1084408409 1549154870 1840509685 2168816818 3681019370 5422042045 5731873019 10844084090 11463746038 28659365095 40123111133 57318730190 80246222266 200615555665 401231111330