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1304412956 = 227115717417
BaseRepresentation
bin100110110111111…
…1100001100011100
310100220111001011222
41031233330030130
510132412203311
6333234032512
744216220140
oct11557741434
93326431158
101304412956
1160a341840
12304a18738
1317a3217b2
14c534d220
15797b2adb
hex4dbfc31c

1304412956 has 48 divisors (see below), whose sum is σ = 2851360512. Its totient is φ = 507254400.

The previous prime is 1304412931. The next prime is 1304412971. The reversal of 1304412956 is 6592144031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172160 + ... + 179576.

It is an arithmetic number, because the mean of its divisors is an integer number (59403344).

Almost surely, 21304412956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1304412956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425680256).

1304412956 is an abundant number, since it is smaller than the sum of its proper divisors (1546947556).

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

1304412956 is a wasteful number, since it uses less digits than its factorization.

1304412956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010 (or 8008 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1304412956 is about 36116.6575972916. The cubic root of 1304412956 is about 1092.6264290321.

Adding to 1304412956 its reverse (6592144031), we get a palindrome (7896556987).

The spelling of 1304412956 in words is "one billion, three hundred four million, four hundred twelve thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 571 1142 2284 3997 6281 7417 7994 12562 14834 15988 25124 29668 43967 51919 81587 87934 103838 163174 175868 207676 326348 571109 1142218 2284436 4235107 8470214 16940428 29645749 46586177 59291498 93172354 118582996 186344708 326103239 652206478 1304412956