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13552552400 = 245237224749
BaseRepresentation
bin11001001111100101…
…11000100111010000
31021222111111222212012
430213302320213100
5210223423134100
610120450122052
7656562536402
oct144762704720
937874458765
1013552552400
115825076232
122762880328
13137c9c6b9a
14927cc0b72
15544beb135
hex327cb89d0

13552552400 has 90 divisors (see below), whose sum is σ = 33465143250. Its totient is φ = 5274293760.

The previous prime is 13552552399. The next prime is 13552552411. The reversal of 13552552400 is 425525531.

13552552400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 826907536 + 12725644864 = 28756^2 + 112808^2 .

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 535226 + ... + 559974.

It is an arithmetic number, because the mean of its divisors is an integer number (371834925).

Almost surely, 213552552400 is an apocalyptic number.

13552552400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13552552400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16732571625).

13552552400 is an abundant number, since it is smaller than the sum of its proper divisors (19912590850).

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

13552552400 is a wasteful number, since it uses less digits than its factorization.

13552552400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24841 (or 24793 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 13552552400 in words is "thirteen billion, five hundred fifty-two million, five hundred fifty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 37 40 50 74 80 100 148 185 200 296 370 400 592 740 925 1369 1480 1850 2738 2960 3700 5476 6845 7400 10952 13690 14800 21904 24749 27380 34225 49498 54760 68450 98996 109520 123745 136900 197992 247490 273800 395984 494980 547600 618725 915713 989960 1237450 1831426 1979920 2474900 3662852 4578565 4949800 7325704 9157130 9899600 14651408 18314260 22892825 33881381 36628520 45785650 67762762 73257040 91571300 135525524 169406905 183142600 271051048 338813810 366285200 542102096 677627620 847034525 1355255240 1694069050 2710510480 3388138100 6776276200 13552552400