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139744300 = 22521397443
BaseRepresentation
bin10000101010001…
…01010000101100
3100201221202010211
420111011100230
5241233304200
621511112204
73314543533
oct1025052054
9321852124
10139744300
1171977a63
123a972664
1322c4ab47
14147b931a
15c405aba
hex854542c

139744300 has 18 divisors (see below), whose sum is σ = 303245348. Its totient is φ = 55897680.

The previous prime is 139744289. The next prime is 139744303. The reversal of 139744300 is 3447931.

139744300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1397443004 (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (139744303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698622 + ... + 698821.

Almost surely, 2139744300 is an apocalyptic number.

139744300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139744300 is an abundant number, since it is smaller than the sum of its proper divisors (163501048).

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

139744300 is a wasteful number, since it uses less digits than its factorization.

139744300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397457 (or 1397450 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 139744300 is about 11821.3493307659. The cubic root of 139744300 is about 518.9330935441.

The spelling of 139744300 in words is "one hundred thirty-nine million, seven hundred forty-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1397443 2794886 5589772 6987215 13974430 27948860 34936075 69872150 139744300