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103155064240 = 2458531511651
BaseRepresentation
bin110000000010010000…
…1010101110110110000
3100212021001110012201211
41200010201111312300
53142230144023430
6115215551005504
710311164402344
oct1400441256660
9325231405654
10103155064240
113a825387608
1217baa509894
13995c376c67
144dc80ad624
152a3b20d72a
hex1804855db0

103155064240 has 40 divisors (see below), whose sum is σ = 240116850288. Its totient is φ = 41213625600.

The previous prime is 103155064231. The next prime is 103155064267. The reversal of 103155064240 is 42460551301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687586 + ... + 824065.

Almost surely, 2103155064240 is an apocalyptic number.

103155064240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103155064240 is an abundant number, since it is smaller than the sum of its proper divisors (136961786048).

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

103155064240 is a wasteful number, since it uses less digits than its factorization.

103155064240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512517 (or 1512511 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 103155064240 in words is "one hundred three billion, one hundred fifty-five million, sixty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 853 1706 3412 4265 6824 8530 13648 17060 34120 68240 1511651 3023302 6046604 7558255 12093208 15116510 24186416 30233020 60466040 120932080 1289438303 2578876606 5157753212 6447191515 10315506424 12894383030 20631012848 25788766060 51577532120 103155064240