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1308271401 = 32145363489
BaseRepresentation
bin100110111111010…
…1010001100101001
310101011202001222100
41031332222030221
510134404141101
6333452444013
744264060223
oct11576521451
93334661870
101308271401
11611537738
12306179609
1317b072ab8
14c5a75413
1579cc5e86
hex4dfaa329

1308271401 has 6 divisors (see below), whose sum is σ = 1889725370. Its totient is φ = 872180928.

The previous prime is 1308271379. The next prime is 1308271409. The reversal of 1308271401 is 1041728031.

It can be written as a sum of positive squares in only one way, i.e., 917181225 + 391090176 = 30285^2 + 19776^2 .

It is a de Polignac number, because none of the positive numbers 2k-1308271401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308271409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72681736 + ... + 72681753.

Almost surely, 21308271401 is an apocalyptic number.

It is an amenable number.

1308271401 is a deficient number, since it is larger than the sum of its proper divisors (581453969).

1308271401 is a wasteful number, since it uses less digits than its factorization.

1308271401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145363495 (or 145363492 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1308271401 is about 36170.0345728339. The cubic root of 1308271401 is about 1093.7026958110.

Adding to 1308271401 its reverse (1041728031), we get a palindrome (2349999432).

The spelling of 1308271401 in words is "one billion, three hundred eight million, two hundred seventy-one thousand, four hundred one".

Divisors: 1 3 9 145363489 436090467 1308271401