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7931048401397 = 11243101127151787
BaseRepresentation
bin111001101101001011101…
…0100101001100111110101
31001002012102101210021100002
41303122113110221213311
52014420241342321042
624511250124001045
71445666526046352
oct163322724514765
931065371707302
107931048401397
1125885a2073700
12a81110090185
13456b82732584
141d5c16db3629
15db4888e7132
hex736975299f5

7931048401397 has 96 divisors (see below), whose sum is σ = 9151331008512. Its totient is φ = 6863194800000.

The previous prime is 7931048401391. The next prime is 7931048401427.

It is a happy number.

7931048401397 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7931048401397 - 220 = 7931047352821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7931048401391) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10077570638 + ... + 10077571424.

It is an arithmetic number, because the mean of its divisors is an integer number (95326364672).

Almost surely, 27931048401397 is an apocalyptic number.

It is an amenable number.

7931048401397 is a deficient number, since it is larger than the sum of its proper divisors (1220282607115).

7931048401397 is a wasteful number, since it uses less digits than its factorization.

7931048401397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 7931048401397 in words is "seven trillion, nine hundred thirty-one billion, forty-eight million, four hundred one thousand, three hundred ninety-seven".

Divisors: 1 11 43 101 121 127 151 473 787 1111 1397 1661 4343 5203 5461 6493 8657 12221 12827 15251 15367 18271 19177 33841 47773 60071 71423 79487 95227 99949 118837 141097 167761 210947 372251 525503 551561 655793 660781 785653 824611 874357 1099439 1307207 1552067 1845371 1936877 2320417 3417941 4094761 4297807 5109991 6067171 7213723 9070721 9617927 10094849 12002537 12093829 14379277 15092299 21305647 37597351 47275877 56209901 66738881 79350953 83285711 99777931 111043339 132027907 166015289 234362117 413570861 434078507 516109091 520034647 618308911 648968857 916142821 1221476729 1452306977 1524322199 1826168179 4774863577 5677200001 7138657427 10077571031 16767544189 52523499347 62449200011 65545854557 78525231697 184442986079 721004400127 7931048401397