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38700906400 = 2552135476803
BaseRepresentation
bin100100000010110000…
…001111011110100000
310200220010120202002201
4210002300033132200
51113224413001100
625440130422544
72540021163622
oct440260173640
9120803522081
1038700906400
111545a71a872
127600a31a54
133859ba4020
141c31c44c12
15101792536a
hex902c0f7a0

38700906400 has 144 divisors (see below), whose sum is σ = 101947162464. Its totient is φ = 14261345280.

The previous prime is 38700906359. The next prime is 38700906451. The reversal of 38700906400 is 460900783.

It is a self number, because there is not a number n which added to its sum of digits gives 38700906400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5685399 + ... + 5692201.

It is an arithmetic number, because the mean of its divisors is an integer number (707966406).

Almost surely, 238700906400 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 38700906400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50973581232).

38700906400 is an abundant number, since it is smaller than the sum of its proper divisors (63246256064).

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

38700906400 is a wasteful number, since it uses less digits than its factorization.

38700906400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7383 (or 7370 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 38700906400 in words is "thirty-eight billion, seven hundred million, nine hundred six thousand, four hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 65 80 100 104 130 160 200 208 260 325 400 416 520 547 650 800 1040 1094 1300 2080 2188 2600 2735 4376 5200 5470 6803 7111 8752 10400 10940 13606 13675 14222 17504 21880 27212 27350 28444 34015 35555 43760 54424 54700 56888 68030 71110 87520 88439 108848 109400 113776 136060 142220 170075 176878 177775 217696 218800 227552 272120 284440 340150 353756 355550 437600 442195 544240 568880 680300 707512 711100 884390 1088480 1137760 1360600 1415024 1422200 1768780 2210975 2721200 2830048 2844400 3537560 3721241 4421950 5442400 5688800 7075120 7442482 8843900 14150240 14884964 17687800 18606205 29769928 35375600 37212410 48376133 59539856 70751200 74424820 93031025 96752266 119079712 148849640 186062050 193504532 241880665 297699280 372124100 387009064 483761330 595398560 744248200 774018128 967522660 1209403325 1488496400 1548036256 1935045320 2418806650 2976992800 3870090640 4837613300 7740181280 9675226600 19350453200 38700906400