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381388908703 = 11211164320943
BaseRepresentation
bin1011000110011001000…
…11001110100010011111
31100110102122111222022011
411203030203032202133
522222041030034303
6451112503532051
736361113143425
oct5431443164237
91313378458264
10381388908703
11137823107010
1261aba45a027
1329c7092a99a
1414660543115
159dc2a8116d
hex58cc8ce89f

381388908703 has 8 divisors (see below), whose sum is σ = 418032481536. Its totient is φ = 345073978200.

The previous prime is 381388908701. The next prime is 381388908739. The reversal of 381388908703 is 307809883183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381388908703 - 21 = 381388908701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381388908701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82158151 + ... + 82162792.

It is an arithmetic number, because the mean of its divisors is an integer number (52254060192).

Almost surely, 2381388908703 is an apocalyptic number.

381388908703 is a deficient number, since it is larger than the sum of its proper divisors (36643572833).

381388908703 is a wasteful number, since it uses less digits than its factorization.

381388908703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164321165.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 381388908703 in words is "three hundred eighty-one billion, three hundred eighty-eight million, nine hundred eight thousand, seven hundred three".

Divisors: 1 11 211 2321 164320943 1807530373 34671718973 381388908703