Search a number
-
+
31000043452301 = 71123131133620301
BaseRepresentation
bin1110000110001110000101…
…00100111111011110001101
311001202120112022212210022122
413003013002210333132031
513030401042110433201
6145533120125022325
76346451655442310
oct703070244773615
9131676468783278
1031000043452301
1199720543a5340
1235880239b49a5
13143b3a370cac1
147925a54a4977
1538b5b0274e1b
hex1c31c293f78d

31000043452301 has 32 divisors (see below), whose sum is σ = 40637675206656. Its totient is φ = 22929243480000.

The previous prime is 31000043452283. The next prime is 31000043452337. The reversal of 31000043452301 is 10325434000013.

It is not a de Polignac number, because 31000043452301 - 226 = 30999976343437 is a prime.

It is a super-2 number, since 2×310000434523012 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000043452381) 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, 66578150 + ... + 67042151.

It is an arithmetic number, because the mean of its divisors is an integer number (1269927350208).

Almost surely, 231000043452301 is an apocalyptic number.

It is an amenable number.

31000043452301 is a deficient number, since it is larger than the sum of its proper divisors (9637631754355).

31000043452301 is a wasteful number, since it uses less digits than its factorization.

31000043452301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133620473.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31000043452301 its reverse (10325434000013), we get a palindrome (41325477452314).

The spelling of 31000043452301 in words is "thirty-one trillion, forty-three million, four hundred fifty-two thousand, three hundred one".

Divisors: 1 7 11 23 77 131 161 253 917 1441 1771 3013 10087 21091 33143 232001 133620301 935342107 1469823311 3073266923 10288763177 17504259431 21512868461 33805936153 122529816017 192546853741 236641553071 402597966913 1347827976187 2818185768391 4428577636043 31000043452301