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1369961148 = 223833174339
BaseRepresentation
bin101000110100111…
…1111001010111100
310112110211020101210
41101221333022330
510301202224043
6343535004420
745643322553
oct12151771274
93473736353
101369961148
116433420a6
12322969710
1318aa91bca
14cdd32d9a
158040e633
hex51a7f2bc

1369961148 has 48 divisors (see below), whose sum is σ = 3246042240. Its totient is φ = 449625024.

The previous prime is 1369961137. The next prime is 1369961171. The reversal of 1369961148 is 8411699631.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1369961097 and 1369961106.

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, 313563 + ... + 317901.

It is an arithmetic number, because the mean of its divisors is an integer number (67625880).

Almost surely, 21369961148 is an apocalyptic number.

It is an amenable number.

1369961148 is an abundant number, since it is smaller than the sum of its proper divisors (1876081092).

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

1369961148 is a wasteful number, since it uses less digits than its factorization.

1369961148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746 (or 4744 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 1369961148 is about 37012.9862075461. The cubic root of 1369961148 is about 1110.6300424464.

It can be divided in two parts, 13699 and 61148, that added together give a palindrome (74847).

The spelling of 1369961148 in words is "one billion, three hundred sixty-nine million, nine hundred sixty-one thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 83 166 249 317 332 498 634 951 996 1268 1902 3804 4339 8678 13017 17356 26034 26311 52068 52622 78933 105244 157866 315732 360137 720274 1080411 1375463 1440548 2160822 2750926 4126389 4321644 5501852 8252778 16505556 114163429 228326858 342490287 456653716 684980574 1369961148