Search a number
-
+
155904690001 = 1039771549271
BaseRepresentation
bin1001000100110010100…
…1001100011101010001
3112220102021011211210211
42101030221030131101
510023243100040001
6155342134324121
714156314666624
oct2211451143521
9486367154724
10155904690001
1160134151145
12262701b9641
1311917987378
14778da6ddbb
1540c718c351
hex244ca4c751

155904690001 has 8 divisors (see below), whose sum is σ = 157579553664. Its totient is φ = 154232927040.

The previous prime is 155904689977. The next prime is 155904690037. The reversal of 155904690001 is 100096409551.

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 155904690001 - 29 = 155904689489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155904690301) 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, 674005 + ... + 875266.

It is an arithmetic number, because the mean of its divisors is an integer number (19697444208).

Almost surely, 2155904690001 is an apocalyptic number.

It is an amenable number.

155904690001 is a deficient number, since it is larger than the sum of its proper divisors (1674863663).

155904690001 is a wasteful number, since it uses less digits than its factorization.

155904690001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550351.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 155904690001 in words is "one hundred fifty-five billion, nine hundred four million, six hundred ninety thousand, one".

Divisors: 1 103 977 100631 1549271 159574913 1513637767 155904690001